Home / 65,554,778.61-90,465,084.59-36,186,120.54

Finding the Fourth Proportional to 65,554,778.61, 90,465,084.59 and 36,186,120.54

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Solution

The fourth proportional to 65,554,778.61, 90,465,084.59 and 36,186,120.54 is: 49,936,564.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,554,778.61 : 90,465,084.59 = 36,186,120.54 : x
  2. Step 2: Convert to fraction form
    65,554,778.61/90,465,084.59 = 36,186,120.54/x
  3. Step 3: Cross multiply
    65,554,778.61x = 90,465,084.59 × 36,186,120.54
  4. Step 4: Simplify right side
    65,554,778.61x = 3,273,580,455,454,105.50
  5. Step 5: Solve for x
    x = 3,273,580,455,454,105.50/65,554,778.61
  6. Step 6: Final answer
    x = 49,936,564.88

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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.