Home / 66,428,945.20-99,643,417.80-49,422,833.20

Finding the Fourth Proportional to 66,428,945.20, 99,643,417.80 and 49,422,833.20

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Solution

The fourth proportional to 66,428,945.20, 99,643,417.80 and 49,422,833.20 is: 74,134,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,945.20 : 99,643,417.80 = 49,422,833.20 : x
  2. Step 2: Convert to fraction form
    66,428,945.20/99,643,417.80 = 49,422,833.20/x
  3. Step 3: Cross multiply
    66,428,945.20x = 99,643,417.80 × 49,422,833.20
  4. Step 4: Simplify right side
    66,428,945.20x = 4,924,660,017,407,311
  5. Step 5: Solve for x
    x = 4,924,660,017,407,311/66,428,945.20
  6. Step 6: Final answer
    x = 74,134,249.80

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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.