Home / 885,346,355.97-1,221,336,680.08-527,862,012.31

Finding the Fourth Proportional to 885,346,355.97, 1,221,336,680.08 and 527,862,012.31

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Solution

The fourth proportional to 885,346,355.97, 1,221,336,680.08 and 527,862,012.31 is: 728,186,469.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,355.97 : 1,221,336,680.08 = 527,862,012.31 : x
  2. Step 2: Convert to fraction form
    885,346,355.97/1,221,336,680.08 = 527,862,012.31/x
  3. Step 3: Cross multiply
    885,346,355.97x = 1,221,336,680.08 × 527,862,012.31
  4. Step 4: Simplify right side
    885,346,355.97x = 644,697,237,655,043,456
  5. Step 5: Solve for x
    x = 644,697,237,655,043,456/885,346,355.97
  6. Step 6: Final answer
    x = 728,186,469.97

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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.