Home / 21,191,859.20-31,740,549.60-16,373,460.80

Finding the Fourth Proportional to 21,191,859.20, 31,740,549.60 and 16,373,460.80

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Solution

The fourth proportional to 21,191,859.20, 31,740,549.60 and 16,373,460.80 is: 24,523,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,859.20 : 31,740,549.60 = 16,373,460.80 : x
  2. Step 2: Convert to fraction form
    21,191,859.20/31,740,549.60 = 16,373,460.80/x
  3. Step 3: Cross multiply
    21,191,859.20x = 31,740,549.60 × 16,373,460.80
  4. Step 4: Simplify right side
    21,191,859.20x = 519,702,644,646,055.75
  5. Step 5: Solve for x
    x = 519,702,644,646,055.75/21,191,859.20
  6. Step 6: Final answer
    x = 24,523,692.79

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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.