Home / 21,438,060.30-32,157,090.45-12,368,133.90

Finding the Fourth Proportional to 21,438,060.30, 32,157,090.45 and 12,368,133.90

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Solution

The fourth proportional to 21,438,060.30, 32,157,090.45 and 12,368,133.90 is: 18,552,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,060.30 : 32,157,090.45 = 12,368,133.90 : x
  2. Step 2: Convert to fraction form
    21,438,060.30/32,157,090.45 = 12,368,133.90/x
  3. Step 3: Cross multiply
    21,438,060.30x = 32,157,090.45 × 12,368,133.90
  4. Step 4: Simplify right side
    21,438,060.30x = 397,723,200,520,011.25
  5. Step 5: Solve for x
    x = 397,723,200,520,011.25/21,438,060.30
  6. Step 6: Final answer
    x = 18,552,200.85

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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.