Home / 1,078,634,957.16-1,488,092,720.06-626,435,946.92

Finding the Fourth Proportional to 1,078,634,957.16, 1,488,092,720.06 and 626,435,946.92

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Solution

The fourth proportional to 1,078,634,957.16, 1,488,092,720.06 and 626,435,946.92 is: 864,235,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,634,957.16 : 1,488,092,720.06 = 626,435,946.92 : x
  2. Step 2: Convert to fraction form
    1,078,634,957.16/1,488,092,720.06 = 626,435,946.92/x
  3. Step 3: Cross multiply
    1,078,634,957.16x = 1,488,092,720.06 × 626,435,946.92
  4. Step 4: Simplify right side
    1,078,634,957.16x = 932,194,772,195,544,448
  5. Step 5: Solve for x
    x = 932,194,772,195,544,448/1,078,634,957.16
  6. Step 6: Final answer
    x = 864,235,639.69

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Half scale
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Double scale
Find fourth proportional to 1,078,634,958.16, 1,488,092,721.44 and 626,435,947.92
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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.