Home / 66,474,755.20-91,734,811.50-38,604,318.40

Finding the Fourth Proportional to 66,474,755.20, 91,734,811.50 and 38,604,318.40

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Solution

The fourth proportional to 66,474,755.20, 91,734,811.50 and 38,604,318.40 is: 53,273,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474,755.20 : 91,734,811.50 = 38,604,318.40 : x
  2. Step 2: Convert to fraction form
    66,474,755.20/91,734,811.50 = 38,604,318.40/x
  3. Step 3: Cross multiply
    66,474,755.20x = 91,734,811.50 × 38,604,318.40
  4. Step 4: Simplify right side
    66,474,755.20x = 3,541,359,871,509,981.50
  5. Step 5: Solve for x
    x = 3,541,359,871,509,981.50/66,474,755.20
  6. Step 6: Final answer
    x = 53,273,755.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.