Home / 66,428,937.20-99,643,405.80-43,735,458.80

Finding the Fourth Proportional to 66,428,937.20, 99,643,405.80 and 43,735,458.80

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Solution

The fourth proportional to 66,428,937.20, 99,643,405.80 and 43,735,458.80 is: 65,603,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,937.20 : 99,643,405.80 = 43,735,458.80 : x
  2. Step 2: Convert to fraction form
    66,428,937.20/99,643,405.80 = 43,735,458.80/x
  3. Step 3: Cross multiply
    66,428,937.20x = 99,643,405.80 × 43,735,458.80
  4. Step 4: Simplify right side
    66,428,937.20x = 4,357,950,069,057,580.50
  5. Step 5: Solve for x
    x = 4,357,950,069,057,580.50/66,428,937.20
  6. Step 6: Final answer
    x = 65,603,188.20

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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.