Home / 1,090,147,129.30-1,635,220,693.95-1,005,966,874.90

Finding the Fourth Proportional to 1,090,147,129.30, 1,635,220,693.95 and 1,005,966,874.90

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Solution

The fourth proportional to 1,090,147,129.30, 1,635,220,693.95 and 1,005,966,874.90 is: 1,508,950,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,147,129.30 : 1,635,220,693.95 = 1,005,966,874.90 : x
  2. Step 2: Convert to fraction form
    1,090,147,129.30/1,635,220,693.95 = 1,005,966,874.90/x
  3. Step 3: Cross multiply
    1,090,147,129.30x = 1,635,220,693.95 × 1,005,966,874.90
  4. Step 4: Simplify right side
    1,090,147,129.30x = 1,644,977,851,264,690,944
  5. Step 5: Solve for x
    x = 1,644,977,851,264,690,944/1,090,147,129.30
  6. Step 6: Final answer
    x = 1,508,950,312.35

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.