Home / 8,316,166.40-12,474,249.60-7,287,660.80

Finding the Fourth Proportional to 8,316,166.40, 12,474,249.60 and 7,287,660.80

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Solution

The fourth proportional to 8,316,166.40, 12,474,249.60 and 7,287,660.80 is: 10,931,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316,166.40 : 12,474,249.60 = 7,287,660.80 : x
  2. Step 2: Convert to fraction form
    8,316,166.40/12,474,249.60 = 7,287,660.80/x
  3. Step 3: Cross multiply
    8,316,166.40x = 12,474,249.60 × 7,287,660.80
  4. Step 4: Simplify right side
    8,316,166.40x = 90,908,099,819,335.67
  5. Step 5: Solve for x
    x = 90,908,099,819,335.67/8,316,166.40
  6. Step 6: Final answer
    x = 10,931,491.20

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1.5x scale

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.