Home / 91,977,140.88-138,023,149.02-61,293,250.71

Finding the Fourth Proportional to 91,977,140.88, 138,023,149.02 and 61,293,250.71

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Solution

The fourth proportional to 91,977,140.88, 138,023,149.02 and 61,293,250.71 is: 91,978,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977,140.88 : 138,023,149.02 = 61,293,250.71 : x
  2. Step 2: Convert to fraction form
    91,977,140.88/138,023,149.02 = 61,293,250.71/x
  3. Step 3: Cross multiply
    91,977,140.88x = 138,023,149.02 × 61,293,250.71
  4. Step 4: Simplify right side
    91,977,140.88x = 8,459,887,476,666,552
  5. Step 5: Solve for x
    x = 8,459,887,476,666,552/91,977,140.88
  6. Step 6: Final answer
    x = 91,978,152.35

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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.