Home / 21,920,154.66-30,264,698.28-13,663,520.10

Finding the Fourth Proportional to 21,920,154.66, 30,264,698.28 and 13,663,520.10

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Solution

The fourth proportional to 21,920,154.66, 30,264,698.28 and 13,663,520.10 is: 18,864,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,154.66 : 30,264,698.28 = 13,663,520.10 : x
  2. Step 2: Convert to fraction form
    21,920,154.66/30,264,698.28 = 13,663,520.10/x
  3. Step 3: Cross multiply
    21,920,154.66x = 30,264,698.28 × 13,663,520.10
  4. Step 4: Simplify right side
    21,920,154.66x = 413,522,313,269,215.44
  5. Step 5: Solve for x
    x = 413,522,313,269,215.44/21,920,154.66
  6. Step 6: Final answer
    x = 18,864,935.93

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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.