Home / 74,887,620.20-112,331,430.30-66,384,564.20

Finding the Fourth Proportional to 74,887,620.20, 112,331,430.30 and 66,384,564.20

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Solution

The fourth proportional to 74,887,620.20, 112,331,430.30 and 66,384,564.20 is: 99,576,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,620.20 : 112,331,430.30 = 66,384,564.20 : x
  2. Step 2: Convert to fraction form
    74,887,620.20/112,331,430.30 = 66,384,564.20/x
  3. Step 3: Cross multiply
    74,887,620.20x = 112,331,430.30 × 66,384,564.20
  4. Step 4: Simplify right side
    74,887,620.20x = 7,457,073,046,428,175
  5. Step 5: Solve for x
    x = 7,457,073,046,428,175/74,887,620.20
  6. Step 6: Final answer
    x = 99,576,846.30

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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.