Home / 66,065,966.20-91,167,947.58-36,699,189.40

Finding the Fourth Proportional to 66,065,966.20, 91,167,947.58 and 36,699,189.40

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Solution

The fourth proportional to 66,065,966.20, 91,167,947.58 and 36,699,189.40 is: 50,643,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065,966.20 : 91,167,947.58 = 36,699,189.40 : x
  2. Step 2: Convert to fraction form
    66,065,966.20/91,167,947.58 = 36,699,189.40/x
  3. Step 3: Cross multiply
    66,065,966.20x = 91,167,947.58 × 36,699,189.40
  4. Step 4: Simplify right side
    66,065,966.20x = 3,345,789,775,447,691.50
  5. Step 5: Solve for x
    x = 3,345,789,775,447,691.50/66,065,966.20
  6. Step 6: Final answer
    x = 50,643,167.24

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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.