Home / 111,915,037.20-167,872,555.80-66,453,430.80

Finding the Fourth Proportional to 111,915,037.20, 167,872,555.80 and 66,453,430.80

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Solution

The fourth proportional to 111,915,037.20, 167,872,555.80 and 66,453,430.80 is: 99,680,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,915,037.20 : 167,872,555.80 = 66,453,430.80 : x
  2. Step 2: Convert to fraction form
    111,915,037.20/167,872,555.80 = 66,453,430.80/x
  3. Step 3: Cross multiply
    111,915,037.20x = 167,872,555.80 × 66,453,430.80
  4. Step 4: Simplify right side
    111,915,037.20x = 11,155,707,270,074,438
  5. Step 5: Solve for x
    x = 11,155,707,270,074,438/111,915,037.20
  6. Step 6: Final answer
    x = 99,680,146.20

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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.