Home / 66,428,851.70-99,643,277.55-55,847,270.90

Finding the Fourth Proportional to 66,428,851.70, 99,643,277.55 and 55,847,270.90

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Solution

The fourth proportional to 66,428,851.70, 99,643,277.55 and 55,847,270.90 is: 83,770,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,851.70 : 99,643,277.55 = 55,847,270.90 : x
  2. Step 2: Convert to fraction form
    66,428,851.70/99,643,277.55 = 55,847,270.90/x
  3. Step 3: Cross multiply
    66,428,851.70x = 99,643,277.55 × 55,847,270.90
  4. Step 4: Simplify right side
    66,428,851.70x = 5,564,805,114,698,738
  5. Step 5: Solve for x
    x = 5,564,805,114,698,738/66,428,851.70
  6. Step 6: Final answer
    x = 83,770,906.35

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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.