Home / 74,239,664.10-111,359,496.15-66,429,449.70

Finding the Fourth Proportional to 74,239,664.10, 111,359,496.15 and 66,429,449.70

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Solution

The fourth proportional to 74,239,664.10, 111,359,496.15 and 66,429,449.70 is: 99,644,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,239,664.10 : 111,359,496.15 = 66,429,449.70 : x
  2. Step 2: Convert to fraction form
    74,239,664.10/111,359,496.15 = 66,429,449.70/x
  3. Step 3: Cross multiply
    74,239,664.10x = 111,359,496.15 × 66,429,449.70
  4. Step 4: Simplify right side
    74,239,664.10x = 7,397,550,048,113,769
  5. Step 5: Solve for x
    x = 7,397,550,048,113,769/74,239,664.10
  6. Step 6: Final answer
    x = 99,644,174.55

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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.