Home / 38,779,529-53,518,144.32-21,375,834.96

Finding the Fourth Proportional to 38,779,529, 53,518,144.32 and 21,375,834.96

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Solution

The fourth proportional to 38,779,529, 53,518,144.32 and 21,375,834.96 is: 29,499,972.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,529 : 53,518,144.32 = 21,375,834.96 : x
  2. Step 2: Convert to fraction form
    38,779,529/53,518,144.32 = 21,375,834.96/x
  3. Step 3: Cross multiply
    38,779,529x = 53,518,144.32 × 21,375,834.96
  4. Step 4: Simplify right side
    38,779,529x = 1,143,995,020,349,781.50
  5. Step 5: Solve for x
    x = 1,143,995,020,349,781.50/38,779,529
  6. Step 6: Final answer
    x = 29,499,972.02

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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.