Home / 98,761,456.80-148,237,800.84-47,679,318.72

Finding the Fourth Proportional to 98,761,456.80, 148,237,800.84 and 47,679,318.72

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Solution

The fourth proportional to 98,761,456.80, 148,237,800.84 and 47,679,318.72 is: 71,565,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,761,456.80 : 148,237,800.84 = 47,679,318.72 : x
  2. Step 2: Convert to fraction form
    98,761,456.80/148,237,800.84 = 47,679,318.72/x
  3. Step 3: Cross multiply
    98,761,456.80x = 148,237,800.84 × 47,679,318.72
  4. Step 4: Simplify right side
    98,761,456.80x = 7,067,877,352,602,244
  5. Step 5: Solve for x
    x = 7,067,877,352,602,244/98,761,456.80
  6. Step 6: Final answer
    x = 71,565,138.68

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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.