Home / 84,205,601.88-126,129,317.40-40,421,816.34

Finding the Fourth Proportional to 84,205,601.88, 126,129,317.40 and 40,421,816.34

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Solution

The fourth proportional to 84,205,601.88, 126,129,317.40 and 40,421,816.34 is: 60,546,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,205,601.88 : 126,129,317.40 = 40,421,816.34 : x
  2. Step 2: Convert to fraction form
    84,205,601.88/126,129,317.40 = 40,421,816.34/x
  3. Step 3: Cross multiply
    84,205,601.88x = 126,129,317.40 × 40,421,816.34
  4. Step 4: Simplify right side
    84,205,601.88x = 5,098,376,103,032,367
  5. Step 5: Solve for x
    x = 5,098,376,103,032,367/84,205,601.88
  6. Step 6: Final answer
    x = 60,546,756.86

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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.