Home / 21,063,008.80-31,594,513.20-11,993,082.40

Finding the Fourth Proportional to 21,063,008.80, 31,594,513.20 and 11,993,082.40

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Solution

The fourth proportional to 21,063,008.80, 31,594,513.20 and 11,993,082.40 is: 17,989,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,008.80 : 31,594,513.20 = 11,993,082.40 : x
  2. Step 2: Convert to fraction form
    21,063,008.80/31,594,513.20 = 11,993,082.40/x
  3. Step 3: Cross multiply
    21,063,008.80x = 31,594,513.20 × 11,993,082.40
  4. Step 4: Simplify right side
    21,063,008.80x = 378,915,600,195,487.69
  5. Step 5: Solve for x
    x = 378,915,600,195,487.69/21,063,008.80
  6. Step 6: Final answer
    x = 17,989,623.60

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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.