Home / 8,160,827.60-12,213,247.80-7,488,981.20

Finding the Fourth Proportional to 8,160,827.60, 12,213,247.80 and 7,488,981.20

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Solution

The fourth proportional to 8,160,827.60, 12,213,247.80 and 7,488,981.20 is: 11,207,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160,827.60 : 12,213,247.80 = 7,488,981.20 : x
  2. Step 2: Convert to fraction form
    8,160,827.60/12,213,247.80 = 7,488,981.20/x
  3. Step 3: Cross multiply
    8,160,827.60x = 12,213,247.80 × 7,488,981.20
  4. Step 4: Simplify right side
    8,160,827.60x = 91,464,783,165,141.38
  5. Step 5: Solve for x
    x = 91,464,783,165,141.38/8,160,827.60
  6. Step 6: Final answer
    x = 11,207,782.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.