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Finding the Fourth Proportional to 66,430,270.80, 99,645,406.20 and 59,734,114.20

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Solution

The fourth proportional to 66,430,270.80, 99,645,406.20 and 59,734,114.20 is: 89,601,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,270.80 : 99,645,406.20 = 59,734,114.20 : x
  2. Step 2: Convert to fraction form
    66,430,270.80/99,645,406.20 = 59,734,114.20/x
  3. Step 3: Cross multiply
    66,430,270.80x = 99,645,406.20 × 59,734,114.20
  4. Step 4: Simplify right side
    66,430,270.80x = 5,952,230,073,456,189
  5. Step 5: Solve for x
    x = 5,952,230,073,456,189/66,430,270.80
  6. Step 6: Final answer
    x = 89,601,171.30

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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.