Home / 121,133,034.55-167,162,737.30-66,128,891.05

Finding the Fourth Proportional to 121,133,034.55, 167,162,737.30 and 66,128,891.05

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Solution

The fourth proportional to 121,133,034.55, 167,162,737.30 and 66,128,891.05 is: 91,257,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133,034.55 : 167,162,737.30 = 66,128,891.05 : x
  2. Step 2: Convert to fraction form
    121,133,034.55/167,162,737.30 = 66,128,891.05/x
  3. Step 3: Cross multiply
    121,133,034.55x = 167,162,737.30 × 66,128,891.05
  4. Step 4: Simplify right side
    121,133,034.55x = 11,054,286,441,948,242
  5. Step 5: Solve for x
    x = 11,054,286,441,948,242/121,133,034.55
  6. Step 6: Final answer
    x = 91,257,405.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.