Home / 1,272,835,883.52-1,909,541,082.24-387,600,433.92

Finding the Fourth Proportional to 1,272,835,883.52, 1,909,541,082.24 and 387,600,433.92

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Solution

The fourth proportional to 1,272,835,883.52, 1,909,541,082.24 and 387,600,433.92 is: 581,488,125.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,835,883.52 : 1,909,541,082.24 = 387,600,433.92 : x
  2. Step 2: Convert to fraction form
    1,272,835,883.52/1,909,541,082.24 = 387,600,433.92/x
  3. Step 3: Cross multiply
    1,272,835,883.52x = 1,909,541,082.24 × 387,600,433.92
  4. Step 4: Simplify right side
    1,272,835,883.52x = 740,138,952,064,290,432
  5. Step 5: Solve for x
    x = 740,138,952,064,290,432/1,272,835,883.52
  6. Step 6: Final answer
    x = 581,488,125.57

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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.