Home / 74,343,856.80-111,515,785.20-66,053,377.20

Finding the Fourth Proportional to 74,343,856.80, 111,515,785.20 and 66,053,377.20

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Solution

The fourth proportional to 74,343,856.80, 111,515,785.20 and 66,053,377.20 is: 99,080,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343,856.80 : 111,515,785.20 = 66,053,377.20 : x
  2. Step 2: Convert to fraction form
    74,343,856.80/111,515,785.20 = 66,053,377.20/x
  3. Step 3: Cross multiply
    74,343,856.80x = 111,515,785.20 × 66,053,377.20
  4. Step 4: Simplify right side
    74,343,856.80x = 7,365,994,223,569,778
  5. Step 5: Solve for x
    x = 7,365,994,223,569,778/74,343,856.80
  6. Step 6: Final answer
    x = 99,080,065.80

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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.