Home / 9,120,828.60-13,681,242.90-8,376,811.20

Finding the Fourth Proportional to 9,120,828.60, 13,681,242.90 and 8,376,811.20

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Solution

The fourth proportional to 9,120,828.60, 13,681,242.90 and 8,376,811.20 is: 12,565,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,828.60 : 13,681,242.90 = 8,376,811.20 : x
  2. Step 2: Convert to fraction form
    9,120,828.60/13,681,242.90 = 8,376,811.20/x
  3. Step 3: Cross multiply
    9,120,828.60x = 13,681,242.90 × 8,376,811.20
  4. Step 4: Simplify right side
    9,120,828.60x = 114,605,188,754,640.48
  5. Step 5: Solve for x
    x = 114,605,188,754,640.48/9,120,828.60
  6. Step 6: Final answer
    x = 12,565,216.80

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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.