Home / 1,078,643,871.87-1,488,104,996.63-626,444,858.49

Finding the Fourth Proportional to 1,078,643,871.87, 1,488,104,996.63 and 626,444,858.49

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Solution

The fourth proportional to 1,078,643,871.87, 1,488,104,996.63 and 626,444,858.49 is: 864,247,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,643,871.87 : 1,488,104,996.63 = 626,444,858.49 : x
  2. Step 2: Convert to fraction form
    1,078,643,871.87/1,488,104,996.63 = 626,444,858.49/x
  3. Step 3: Cross multiply
    1,078,643,871.87x = 1,488,104,996.63 × 626,444,858.49
  4. Step 4: Simplify right side
    1,078,643,871.87x = 932,215,724,029,010,048
  5. Step 5: Solve for x
    x = 932,215,724,029,010,048/1,078,643,871.87
  6. Step 6: Final answer
    x = 864,247,921.25

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Double scale
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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.