Home / 7,129,105.40-10,693,658.10-6,625,220.60

Finding the Fourth Proportional to 7,129,105.40, 10,693,658.10 and 6,625,220.60

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Solution

The fourth proportional to 7,129,105.40, 10,693,658.10 and 6,625,220.60 is: 9,937,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,105.40 : 10,693,658.10 = 6,625,220.60 : x
  2. Step 2: Convert to fraction form
    7,129,105.40/10,693,658.10 = 6,625,220.60/x
  3. Step 3: Cross multiply
    7,129,105.40x = 10,693,658.10 × 6,625,220.60
  4. Step 4: Simplify right side
    7,129,105.40x = 70,847,843,933,476.86
  5. Step 5: Solve for x
    x = 70,847,843,933,476.86/7,129,105.40
  6. Step 6: Final answer
    x = 9,937,830.90

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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.