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Finding the Fourth Proportional to 67,068,325.80, 100,478,485.80 and 38,228,794.20

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Solution

The fourth proportional to 67,068,325.80, 100,478,485.80 and 38,228,794.20 is: 57,272,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,325.80 : 100,478,485.80 = 38,228,794.20 : x
  2. Step 2: Convert to fraction form
    67,068,325.80/100,478,485.80 = 38,228,794.20/x
  3. Step 3: Cross multiply
    67,068,325.80x = 100,478,485.80 × 38,228,794.20
  4. Step 4: Simplify right side
    67,068,325.80x = 3,841,171,355,175,822.50
  5. Step 5: Solve for x
    x = 3,841,171,355,175,822.50/67,068,325.80
  6. Step 6: Final answer
    x = 57,272,509.93

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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.