Home / 125,649,939.40-188,474,909.10-84,835,270.60

Finding the Fourth Proportional to 125,649,939.40, 188,474,909.10 and 84,835,270.60

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Solution

The fourth proportional to 125,649,939.40, 188,474,909.10 and 84,835,270.60 is: 127,252,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,649,939.40 : 188,474,909.10 = 84,835,270.60 : x
  2. Step 2: Convert to fraction form
    125,649,939.40/188,474,909.10 = 84,835,270.60/x
  3. Step 3: Cross multiply
    125,649,939.40x = 188,474,909.10 × 84,835,270.60
  4. Step 4: Simplify right side
    125,649,939.40x = 15,989,319,914,808,900
  5. Step 5: Solve for x
    x = 15,989,319,914,808,900/125,649,939.40
  6. Step 6: Final answer
    x = 127,252,905.90

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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.