Home / 1,121,985,139.92-1,548,309,787.56-626,951,916.24

Finding the Fourth Proportional to 1,121,985,139.92, 1,548,309,787.56 and 626,951,916.24

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Solution

The fourth proportional to 1,121,985,139.92, 1,548,309,787.56 and 626,951,916.24 is: 865,177,045.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,985,139.92 : 1,548,309,787.56 = 626,951,916.24 : x
  2. Step 2: Convert to fraction form
    1,121,985,139.92/1,548,309,787.56 = 626,951,916.24/x
  3. Step 3: Cross multiply
    1,121,985,139.92x = 1,548,309,787.56 × 626,951,916.24
  4. Step 4: Simplify right side
    1,121,985,139.92x = 970,715,788,243,889,280
  5. Step 5: Solve for x
    x = 970,715,788,243,889,280/1,121,985,139.92
  6. Step 6: Final answer
    x = 865,177,045.32

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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.