Home / 85,130,029.66-127,695,046.17-20,433,834.71

Finding the Fourth Proportional to 85,130,029.66, 127,695,046.17 and 20,433,834.71

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Solution

The fourth proportional to 85,130,029.66, 127,695,046.17 and 20,433,834.71 is: 30,650,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,029.66 : 127,695,046.17 = 20,433,834.71 : x
  2. Step 2: Convert to fraction form
    85,130,029.66/127,695,046.17 = 20,433,834.71/x
  3. Step 3: Cross multiply
    85,130,029.66x = 127,695,046.17 × 20,433,834.71
  4. Step 4: Simplify right side
    85,130,029.66x = 2,609,299,466,723,598.50
  5. Step 5: Solve for x
    x = 2,609,299,466,723,598.50/85,130,029.66
  6. Step 6: Final answer
    x = 30,650,752.47

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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.