Home / 38,730,828-53,448,542.52-21,327,131.76

Finding the Fourth Proportional to 38,730,828, 53,448,542.52 and 21,327,131.76

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Solution

The fourth proportional to 38,730,828, 53,448,542.52 and 21,327,131.76 is: 29,431,441.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730,828 : 53,448,542.52 = 21,327,131.76 : x
  2. Step 2: Convert to fraction form
    38,730,828/53,448,542.52 = 21,327,131.76/x
  3. Step 3: Cross multiply
    38,730,828x = 53,448,542.52 × 21,327,131.76
  4. Step 4: Simplify right side
    38,730,828x = 1,139,904,108,704,002.50
  5. Step 5: Solve for x
    x = 1,139,904,108,704,002.50/38,730,828
  6. Step 6: Final answer
    x = 29,431,441.76

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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.