Home / 21,351,484.20-32,029,559.10-20,679,637.80

Finding the Fourth Proportional to 21,351,484.20, 32,029,559.10 and 20,679,637.80

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Solution

The fourth proportional to 21,351,484.20, 32,029,559.10 and 20,679,637.80 is: 31,021,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351,484.20 : 32,029,559.10 = 20,679,637.80 : x
  2. Step 2: Convert to fraction form
    21,351,484.20/32,029,559.10 = 20,679,637.80/x
  3. Step 3: Cross multiply
    21,351,484.20x = 32,029,559.10 × 20,679,637.80
  4. Step 4: Simplify right side
    21,351,484.20x = 662,359,681,081,694
  5. Step 5: Solve for x
    x = 662,359,681,081,694/21,351,484.20
  6. Step 6: Final answer
    x = 31,021,716.10

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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.