Home / 74,152,642.60-111,228,963.90-71,129,333.80

Finding the Fourth Proportional to 74,152,642.60, 111,228,963.90 and 71,129,333.80

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Solution

The fourth proportional to 74,152,642.60, 111,228,963.90 and 71,129,333.80 is: 106,694,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152,642.60 : 111,228,963.90 = 71,129,333.80 : x
  2. Step 2: Convert to fraction form
    74,152,642.60/111,228,963.90 = 71,129,333.80/x
  3. Step 3: Cross multiply
    74,152,642.60x = 111,228,963.90 × 71,129,333.80
  4. Step 4: Simplify right side
    74,152,642.60x = 7,911,642,101,471,250
  5. Step 5: Solve for x
    x = 7,911,642,101,471,250/74,152,642.60
  6. Step 6: Final answer
    x = 106,694,000.70

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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.