Home / 12,789,423.20-19,177,136.40-5,207,823.20

Finding the Fourth Proportional to 12,789,423.20, 19,177,136.40 and 5,207,823.20

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Solution

The fourth proportional to 12,789,423.20, 19,177,136.40 and 5,207,823.20 is: 7,808,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,423.20 : 19,177,136.40 = 5,207,823.20 : x
  2. Step 2: Convert to fraction form
    12,789,423.20/19,177,136.40 = 5,207,823.20/x
  3. Step 3: Cross multiply
    12,789,423.20x = 19,177,136.40 × 5,207,823.20
  4. Step 4: Simplify right side
    12,789,423.20x = 99,871,135,853,484.47
  5. Step 5: Solve for x
    x = 99,871,135,853,484.47/12,789,423.20
  6. Step 6: Final answer
    x = 7,808,885.07

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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.