Home / 38,730,829-53,448,543.90-21,327,132.76

Finding the Fourth Proportional to 38,730,829, 53,448,543.90 and 21,327,132.76

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Solution

The fourth proportional to 38,730,829, 53,448,543.90 and 21,327,132.76 is: 29,431,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730,829 : 53,448,543.90 = 21,327,132.76 : x
  2. Step 2: Convert to fraction form
    38,730,829/53,448,543.90 = 21,327,132.76/x
  3. Step 3: Cross multiply
    38,730,829x = 53,448,543.90 × 21,327,132.76
  4. Step 4: Simplify right side
    38,730,829x = 1,139,904,191,583,988.25
  5. Step 5: Solve for x
    x = 1,139,904,191,583,988.25/38,730,829
  6. Step 6: Final answer
    x = 29,431,443.14

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1.5x scale

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.