Home / 28,452,434.84-39,260,180.90-15,891,941.78

Finding the Fourth Proportional to 28,452,434.84, 39,260,180.90 and 15,891,941.78

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Solution

The fourth proportional to 28,452,434.84, 39,260,180.90 and 15,891,941.78 is: 21,928,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452,434.84 : 39,260,180.90 = 15,891,941.78 : x
  2. Step 2: Convert to fraction form
    28,452,434.84/39,260,180.90 = 15,891,941.78/x
  3. Step 3: Cross multiply
    28,452,434.84x = 39,260,180.90 × 15,891,941.78
  4. Step 4: Simplify right side
    28,452,434.84x = 623,920,508,978,497
  5. Step 5: Solve for x
    x = 623,920,508,978,497/28,452,434.84
  6. Step 6: Final answer
    x = 21,928,545.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.