Home / 71,320,499.70-106,980,749.55-66,502,101.30

Finding the Fourth Proportional to 71,320,499.70, 106,980,749.55 and 66,502,101.30

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Solution

The fourth proportional to 71,320,499.70, 106,980,749.55 and 66,502,101.30 is: 99,753,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320,499.70 : 106,980,749.55 = 66,502,101.30 : x
  2. Step 2: Convert to fraction form
    71,320,499.70/106,980,749.55 = 66,502,101.30/x
  3. Step 3: Cross multiply
    71,320,499.70x = 106,980,749.55 × 66,502,101.30
  4. Step 4: Simplify right side
    71,320,499.70x = 7,114,444,643,724,029
  5. Step 5: Solve for x
    x = 7,114,444,643,724,029/71,320,499.70
  6. Step 6: Final answer
    x = 99,753,151.95

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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.