Home / 15,421,785.20-21,282,188.76-8,546,380.40

Finding the Fourth Proportional to 15,421,785.20, 21,282,188.76 and 8,546,380.40

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Solution

The fourth proportional to 15,421,785.20, 21,282,188.76 and 8,546,380.40 is: 11,794,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421,785.20 : 21,282,188.76 = 8,546,380.40 : x
  2. Step 2: Convert to fraction form
    15,421,785.20/21,282,188.76 = 8,546,380.40/x
  3. Step 3: Cross multiply
    15,421,785.20x = 21,282,188.76 × 8,546,380.40
  4. Step 4: Simplify right side
    15,421,785.20x = 181,885,680,887,564.31
  5. Step 5: Solve for x
    x = 181,885,680,887,564.31/15,421,785.20
  6. Step 6: Final answer
    x = 11,794,074.33

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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.