Home / 66,065,965.20-91,167,946.20-36,699,188.40

Finding the Fourth Proportional to 66,065,965.20, 91,167,946.20 and 36,699,188.40

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Solution

The fourth proportional to 66,065,965.20, 91,167,946.20 and 36,699,188.40 is: 50,643,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065,965.20 : 91,167,946.20 = 36,699,188.40 : x
  2. Step 2: Convert to fraction form
    66,065,965.20/91,167,946.20 = 36,699,188.40/x
  3. Step 3: Cross multiply
    66,065,965.20x = 91,167,946.20 × 36,699,188.40
  4. Step 4: Simplify right side
    66,065,965.20x = 3,345,789,633,634,864
  5. Step 5: Solve for x
    x = 3,345,789,633,634,864/66,065,965.20
  6. Step 6: Final answer
    x = 50,643,165.86

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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.