Home / 111,888,376.30-167,832,564.45-81,655,288.30

Finding the Fourth Proportional to 111,888,376.30, 167,832,564.45 and 81,655,288.30

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Solution

The fourth proportional to 111,888,376.30, 167,832,564.45 and 81,655,288.30 is: 122,482,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,888,376.30 : 167,832,564.45 = 81,655,288.30 : x
  2. Step 2: Convert to fraction form
    111,888,376.30/167,832,564.45 = 81,655,288.30/x
  3. Step 3: Cross multiply
    111,888,376.30x = 167,832,564.45 × 81,655,288.30
  4. Step 4: Simplify right side
    111,888,376.30x = 13,704,416,436,293,080
  5. Step 5: Solve for x
    x = 13,704,416,436,293,080/111,888,376.30
  6. Step 6: Final answer
    x = 122,482,932.45

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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.