Home / 66,798,507.20-100,197,760.80-49,792,395.20

Finding the Fourth Proportional to 66,798,507.20, 100,197,760.80 and 49,792,395.20

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Solution

The fourth proportional to 66,798,507.20, 100,197,760.80 and 49,792,395.20 is: 74,688,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798,507.20 : 100,197,760.80 = 49,792,395.20 : x
  2. Step 2: Convert to fraction form
    66,798,507.20/100,197,760.80 = 49,792,395.20/x
  3. Step 3: Cross multiply
    66,798,507.20x = 100,197,760.80 × 49,792,395.20
  4. Step 4: Simplify right side
    66,798,507.20x = 4,989,086,503,908,668
  5. Step 5: Solve for x
    x = 4,989,086,503,908,668/66,798,507.20
  6. Step 6: Final answer
    x = 74,688,592.80

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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.