Home / 81,603,412.65-122,405,118.98-63,109,265.85

Finding the Fourth Proportional to 81,603,412.65, 122,405,118.98 and 63,109,265.85

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Solution

The fourth proportional to 81,603,412.65, 122,405,118.98 and 63,109,265.85 is: 94,663,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603,412.65 : 122,405,118.98 = 63,109,265.85 : x
  2. Step 2: Convert to fraction form
    81,603,412.65/122,405,118.98 = 63,109,265.85/x
  3. Step 3: Cross multiply
    81,603,412.65x = 122,405,118.98 × 63,109,265.85
  4. Step 4: Simplify right side
    81,603,412.65x = 7,724,897,194,794,154
  5. Step 5: Solve for x
    x = 7,724,897,194,794,154/81,603,412.65
  6. Step 6: Final answer
    x = 94,663,898.78

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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.