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Finding the Fourth Proportional to 67,006,101.40, 100,509,152.10 and 60,203,656.60

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Solution

The fourth proportional to 67,006,101.40, 100,509,152.10 and 60,203,656.60 is: 90,305,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,006,101.40 : 100,509,152.10 = 60,203,656.60 : x
  2. Step 2: Convert to fraction form
    67,006,101.40/100,509,152.10 = 60,203,656.60/x
  3. Step 3: Cross multiply
    67,006,101.40x = 100,509,152.10 × 60,203,656.60
  4. Step 4: Simplify right side
    67,006,101.40x = 6,051,018,478,185,569
  5. Step 5: Solve for x
    x = 6,051,018,478,185,569/67,006,101.40
  6. Step 6: Final answer
    x = 90,305,484.90

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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.