Home / 1,078,643,867.62-1,488,104,990.76-626,444,854.24

Finding the Fourth Proportional to 1,078,643,867.62, 1,488,104,990.76 and 626,444,854.24

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Solution

The fourth proportional to 1,078,643,867.62, 1,488,104,990.76 and 626,444,854.24 is: 864,247,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,643,867.62 : 1,488,104,990.76 = 626,444,854.24 : x
  2. Step 2: Convert to fraction form
    1,078,643,867.62/1,488,104,990.76 = 626,444,854.24/x
  3. Step 3: Cross multiply
    1,078,643,867.62x = 1,488,104,990.76 × 626,444,854.24
  4. Step 4: Simplify right side
    1,078,643,867.62x = 932,215,714,030,464,768
  5. Step 5: Solve for x
    x = 932,215,714,030,464,768/1,078,643,867.62
  6. Step 6: Final answer
    x = 864,247,915.38

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Half scale
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Double scale
Find fourth proportional to 1,078,643,868.62, 1,488,104,992.14 and 626,444,855.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.