Home / 148,352,071.52-222,548,570.54-86,132,687.90

Finding the Fourth Proportional to 148,352,071.52, 222,548,570.54 and 86,132,687.90

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Solution

The fourth proportional to 148,352,071.52, 222,548,570.54 and 86,132,687.90 is: 129,210,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,352,071.52 : 222,548,570.54 = 86,132,687.90 : x
  2. Step 2: Convert to fraction form
    148,352,071.52/222,548,570.54 = 86,132,687.90/x
  3. Step 3: Cross multiply
    148,352,071.52x = 222,548,570.54 × 86,132,687.90
  4. Step 4: Simplify right side
    148,352,071.52x = 19,168,706,567,692,544
  5. Step 5: Solve for x
    x = 19,168,706,567,692,544/148,352,071.52
  6. Step 6: Final answer
    x = 129,210,912.74

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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.