Home / 485,258,001.90-727,887,002.85-436,885,061.10

Finding the Fourth Proportional to 485,258,001.90, 727,887,002.85 and 436,885,061.10

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Solution

The fourth proportional to 485,258,001.90, 727,887,002.85 and 436,885,061.10 is: 655,327,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,258,001.90 : 727,887,002.85 = 436,885,061.10 : x
  2. Step 2: Convert to fraction form
    485,258,001.90/727,887,002.85 = 436,885,061.10/x
  3. Step 3: Cross multiply
    485,258,001.90x = 727,887,002.85 × 436,885,061.10
  4. Step 4: Simplify right side
    485,258,001.90x = 318,002,957,714,018,176
  5. Step 5: Solve for x
    x = 318,002,957,714,018,176/485,258,001.90
  6. Step 6: Final answer
    x = 655,327,591.65

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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.