Home / 20,357,515.46-28,084,008.79-18,036,774.95

Finding the Fourth Proportional to 20,357,515.46, 28,084,008.79 and 18,036,774.95

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Solution

The fourth proportional to 20,357,515.46, 28,084,008.79 and 18,036,774.95 is: 24,882,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,515.46 : 28,084,008.79 = 18,036,774.95 : x
  2. Step 2: Convert to fraction form
    20,357,515.46/28,084,008.79 = 18,036,774.95/x
  3. Step 3: Cross multiply
    20,357,515.46x = 28,084,008.79 × 18,036,774.95
  4. Step 4: Simplify right side
    20,357,515.46x = 506,544,946,121,177.75
  5. Step 5: Solve for x
    x = 506,544,946,121,177.75/20,357,515.46
  6. Step 6: Final answer
    x = 24,882,454.20

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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.