Home / 99,661,380.60-149,492,070.90-61,198,174.20

Finding the Fourth Proportional to 99,661,380.60, 149,492,070.90 and 61,198,174.20

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Solution

The fourth proportional to 99,661,380.60, 149,492,070.90 and 61,198,174.20 is: 91,797,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661,380.60 : 149,492,070.90 = 61,198,174.20 : x
  2. Step 2: Convert to fraction form
    99,661,380.60/149,492,070.90 = 61,198,174.20/x
  3. Step 3: Cross multiply
    99,661,380.60x = 149,492,070.90 × 61,198,174.20
  4. Step 4: Simplify right side
    99,661,380.60x = 9,148,641,796,456,952
  5. Step 5: Solve for x
    x = 9,148,641,796,456,952/99,661,380.60
  6. Step 6: Final answer
    x = 91,797,261.30

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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.