Home / 21,454,428.80-32,181,643.20-12,384,502.40

Finding the Fourth Proportional to 21,454,428.80, 32,181,643.20 and 12,384,502.40

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Solution

The fourth proportional to 21,454,428.80, 32,181,643.20 and 12,384,502.40 is: 18,576,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454,428.80 : 32,181,643.20 = 12,384,502.40 : x
  2. Step 2: Convert to fraction form
    21,454,428.80/32,181,643.20 = 12,384,502.40/x
  3. Step 3: Cross multiply
    21,454,428.80x = 32,181,643.20 × 12,384,502.40
  4. Step 4: Simplify right side
    21,454,428.80x = 398,553,637,446,343.69
  5. Step 5: Solve for x
    x = 398,553,637,446,343.69/21,454,428.80
  6. Step 6: Final answer
    x = 18,576,753.60

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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.