Home / 81,503,123.40-122,254,685.10-73,440,966.60

Finding the Fourth Proportional to 81,503,123.40, 122,254,685.10 and 73,440,966.60

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Solution

The fourth proportional to 81,503,123.40, 122,254,685.10 and 73,440,966.60 is: 110,161,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,503,123.40 : 122,254,685.10 = 73,440,966.60 : x
  2. Step 2: Convert to fraction form
    81,503,123.40/122,254,685.10 = 73,440,966.60/x
  3. Step 3: Cross multiply
    81,503,123.40x = 122,254,685.10 × 73,440,966.60
  4. Step 4: Simplify right side
    81,503,123.40x = 8,978,502,245,122,616
  5. Step 5: Solve for x
    x = 8,978,502,245,122,616/81,503,123.40
  6. Step 6: Final answer
    x = 110,161,449.90

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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.