Home / 81,960,005.60-122,856,027.60-47,863,800.80

Finding the Fourth Proportional to 81,960,005.60, 122,856,027.60 and 47,863,800.80

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Solution

The fourth proportional to 81,960,005.60, 122,856,027.60 and 47,863,800.80 is: 71,746,657.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,960,005.60 : 122,856,027.60 = 47,863,800.80 : x
  2. Step 2: Convert to fraction form
    81,960,005.60/122,856,027.60 = 47,863,800.80/x
  3. Step 3: Cross multiply
    81,960,005.60x = 122,856,027.60 × 47,863,800.80
  4. Step 4: Simplify right side
    81,960,005.60x = 5,880,356,432,125,701
  5. Step 5: Solve for x
    x = 5,880,356,432,125,701/81,960,005.60
  6. Step 6: Final answer
    x = 71,746,657.28

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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.