Home / 74,887,615.20-112,331,422.80-66,384,559.20

Finding the Fourth Proportional to 74,887,615.20, 112,331,422.80 and 66,384,559.20

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Solution

The fourth proportional to 74,887,615.20, 112,331,422.80 and 66,384,559.20 is: 99,576,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,615.20 : 112,331,422.80 = 66,384,559.20 : x
  2. Step 2: Convert to fraction form
    74,887,615.20/112,331,422.80 = 66,384,559.20/x
  3. Step 3: Cross multiply
    74,887,615.20x = 112,331,422.80 × 66,384,559.20
  4. Step 4: Simplify right side
    74,887,615.20x = 7,457,071,986,886,830
  5. Step 5: Solve for x
    x = 7,457,071,986,886,830/74,887,615.20
  6. Step 6: Final answer
    x = 99,576,838.80

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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.