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Finding the Fourth Proportional to 66,657,913.60, 99,792,008.70 and 47,526,037.60

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Solution

The fourth proportional to 66,657,913.60, 99,792,008.70 and 47,526,037.60 is: 71,150,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657,913.60 : 99,792,008.70 = 47,526,037.60 : x
  2. Step 2: Convert to fraction form
    66,657,913.60/99,792,008.70 = 47,526,037.60/x
  3. Step 3: Cross multiply
    66,657,913.60x = 99,792,008.70 × 47,526,037.60
  4. Step 4: Simplify right side
    66,657,913.60x = 4,742,718,757,655,727
  5. Step 5: Solve for x
    x = 4,742,718,757,655,727/66,657,913.60
  6. Step 6: Final answer
    x = 71,150,123.09

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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.