Home / 66,472,889.60-99,709,334.40-55,126,150.40

Finding the Fourth Proportional to 66,472,889.60, 99,709,334.40 and 55,126,150.40

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Solution

The fourth proportional to 66,472,889.60, 99,709,334.40 and 55,126,150.40 is: 82,689,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,889.60 : 99,709,334.40 = 55,126,150.40 : x
  2. Step 2: Convert to fraction form
    66,472,889.60/99,709,334.40 = 55,126,150.40/x
  3. Step 3: Cross multiply
    66,472,889.60x = 99,709,334.40 × 55,126,150.40
  4. Step 4: Simplify right side
    66,472,889.60x = 5,496,591,764,418,294
  5. Step 5: Solve for x
    x = 5,496,591,764,418,294/66,472,889.60
  6. Step 6: Final answer
    x = 82,689,225.60

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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.