Home / 126,023,793.60-188,657,776.80-74,879,486.40

Finding the Fourth Proportional to 126,023,793.60, 188,657,776.80 and 74,879,486.40

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Solution

The fourth proportional to 126,023,793.60, 188,657,776.80 and 74,879,486.40 is: 112,094,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,023,793.60 : 188,657,776.80 = 74,879,486.40 : x
  2. Step 2: Convert to fraction form
    126,023,793.60/188,657,776.80 = 74,879,486.40/x
  3. Step 3: Cross multiply
    126,023,793.60x = 188,657,776.80 × 74,879,486.40
  4. Step 4: Simplify right side
    126,023,793.60x = 14,126,597,432,149,838
  5. Step 5: Solve for x
    x = 14,126,597,432,149,838/126,023,793.60
  6. Step 6: Final answer
    x = 112,094,684.89

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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.