Home / 8,200,937.60-12,301,406.40-7,319,139.20

Finding the Fourth Proportional to 8,200,937.60, 12,301,406.40 and 7,319,139.20

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Solution

The fourth proportional to 8,200,937.60, 12,301,406.40 and 7,319,139.20 is: 10,978,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200,937.60 : 12,301,406.40 = 7,319,139.20 : x
  2. Step 2: Convert to fraction form
    8,200,937.60/12,301,406.40 = 7,319,139.20/x
  3. Step 3: Cross multiply
    8,200,937.60x = 12,301,406.40 × 7,319,139.20
  4. Step 4: Simplify right side
    8,200,937.60x = 90,035,705,797,370.89
  5. Step 5: Solve for x
    x = 90,035,705,797,370.89/8,200,937.60
  6. Step 6: Final answer
    x = 10,978,708.80

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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.