Home / 20,709,207.16-28,579,678.95-11,541,915.52

Finding the Fourth Proportional to 20,709,207.16, 28,579,678.95 and 11,541,915.52

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Solution

The fourth proportional to 20,709,207.16, 28,579,678.95 and 11,541,915.52 is: 15,928,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709,207.16 : 28,579,678.95 = 11,541,915.52 : x
  2. Step 2: Convert to fraction form
    20,709,207.16/28,579,678.95 = 11,541,915.52/x
  3. Step 3: Cross multiply
    20,709,207.16x = 28,579,678.95 × 11,541,915.52
  4. Step 4: Simplify right side
    20,709,207.16x = 329,864,239,829,014.38
  5. Step 5: Solve for x
    x = 329,864,239,829,014.38/20,709,207.16
  6. Step 6: Final answer
    x = 15,928,385.73

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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.