Home / 125,215,246.80-187,598,921.40-77,290,203.60

Finding the Fourth Proportional to 125,215,246.80, 187,598,921.40 and 77,290,203.60

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Solution

The fourth proportional to 125,215,246.80, 187,598,921.40 and 77,290,203.60 is: 115,797,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,215,246.80 : 187,598,921.40 = 77,290,203.60 : x
  2. Step 2: Convert to fraction form
    125,215,246.80/187,598,921.40 = 77,290,203.60/x
  3. Step 3: Cross multiply
    125,215,246.80x = 187,598,921.40 × 77,290,203.60
  4. Step 4: Simplify right side
    125,215,246.80x = 14,499,558,830,146,396
  5. Step 5: Solve for x
    x = 14,499,558,830,146,396/125,215,246.80
  6. Step 6: Final answer
    x = 115,797,071.05

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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.