Home / 105,856,002.60-158,784,003.90-78,982,146.60

Finding the Fourth Proportional to 105,856,002.60, 158,784,003.90 and 78,982,146.60

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Solution

The fourth proportional to 105,856,002.60, 158,784,003.90 and 78,982,146.60 is: 118,473,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,856,002.60 : 158,784,003.90 = 78,982,146.60 : x
  2. Step 2: Convert to fraction form
    105,856,002.60/158,784,003.90 = 78,982,146.60/x
  3. Step 3: Cross multiply
    105,856,002.60x = 158,784,003.90 × 78,982,146.60
  4. Step 4: Simplify right side
    105,856,002.60x = 12,541,101,473,764,772
  5. Step 5: Solve for x
    x = 12,541,101,473,764,772/105,856,002.60
  6. Step 6: Final answer
    x = 118,473,219.90

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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.