Home / 65,720,149.64-90,687,720.12-36,350,850.12

Finding the Fourth Proportional to 65,720,149.64, 90,687,720.12 and 36,350,850.12

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Solution

The fourth proportional to 65,720,149.64, 90,687,720.12 and 36,350,850.12 is: 50,160,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720,149.64 : 90,687,720.12 = 36,350,850.12 : x
  2. Step 2: Convert to fraction form
    65,720,149.64/90,687,720.12 = 36,350,850.12/x
  3. Step 3: Cross multiply
    65,720,149.64x = 90,687,720.12 × 36,350,850.12
  4. Step 4: Simplify right side
    65,720,149.64x = 3,296,575,721,806,628.50
  5. Step 5: Solve for x
    x = 3,296,575,721,806,628.50/65,720,149.64
  6. Step 6: Final answer
    x = 50,160,806.69

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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.