Home / 100,102,630.60-149,860,013.10-74,656,448.20

Finding the Fourth Proportional to 100,102,630.60, 149,860,013.10 and 74,656,448.20

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Solution

The fourth proportional to 100,102,630.60, 149,860,013.10 and 74,656,448.20 is: 111,765,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,102,630.60 : 149,860,013.10 = 74,656,448.20 : x
  2. Step 2: Convert to fraction form
    100,102,630.60/149,860,013.10 = 74,656,448.20/x
  3. Step 3: Cross multiply
    100,102,630.60x = 149,860,013.10 × 74,656,448.20
  4. Step 4: Simplify right side
    100,102,630.60x = 11,188,016,305,251,472
  5. Step 5: Solve for x
    x = 11,188,016,305,251,472/100,102,630.60
  6. Step 6: Final answer
    x = 111,765,457.49

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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.