Home / 72,581,837.10-108,872,755.65-45,707,981.10

Finding the Fourth Proportional to 72,581,837.10, 108,872,755.65 and 45,707,981.10

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Solution

The fourth proportional to 72,581,837.10, 108,872,755.65 and 45,707,981.10 is: 68,561,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,837.10 : 108,872,755.65 = 45,707,981.10 : x
  2. Step 2: Convert to fraction form
    72,581,837.10/108,872,755.65 = 45,707,981.10/x
  3. Step 3: Cross multiply
    72,581,837.10x = 108,872,755.65 × 45,707,981.10
  4. Step 4: Simplify right side
    72,581,837.10x = 4,976,353,857,555,119
  5. Step 5: Solve for x
    x = 4,976,353,857,555,119/72,581,837.10
  6. Step 6: Final answer
    x = 68,561,971.65

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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.