Home / 1,791,435,143.30-2,472,191,970.76-998,531,396.06

Finding the Fourth Proportional to 1,791,435,143.30, 2,472,191,970.76 and 998,531,396.06

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Solution

The fourth proportional to 1,791,435,143.30, 2,472,191,970.76 and 998,531,396.06 is: 1,377,979,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,435,143.30 : 2,472,191,970.76 = 998,531,396.06 : x
  2. Step 2: Convert to fraction form
    1,791,435,143.30/2,472,191,970.76 = 998,531,396.06/x
  3. Step 3: Cross multiply
    1,791,435,143.30x = 2,472,191,970.76 × 998,531,396.06
  4. Step 4: Simplify right side
    1,791,435,143.30x = 2,468,561,299,891,305,472
  5. Step 5: Solve for x
    x = 2,468,561,299,891,305,472/1,791,435,143.30
  6. Step 6: Final answer
    x = 1,377,979,721.52

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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.