Home / 10,728,086.40-16,092,129.60-7,122,160.80

Finding the Fourth Proportional to 10,728,086.40, 16,092,129.60 and 7,122,160.80

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Solution

The fourth proportional to 10,728,086.40, 16,092,129.60 and 7,122,160.80 is: 10,683,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728,086.40 : 16,092,129.60 = 7,122,160.80 : x
  2. Step 2: Convert to fraction form
    10,728,086.40/16,092,129.60 = 7,122,160.80/x
  3. Step 3: Cross multiply
    10,728,086.40x = 16,092,129.60 × 7,122,160.80
  4. Step 4: Simplify right side
    10,728,086.40x = 114,610,734,625,639.67
  5. Step 5: Solve for x
    x = 114,610,734,625,639.67/10,728,086.40
  6. Step 6: Final answer
    x = 10,683,241.20

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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.