Home / 280,180,385.40-419,703,707.70-194,016,084.60

Finding the Fourth Proportional to 280,180,385.40, 419,703,707.70 and 194,016,084.60

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Solution

The fourth proportional to 280,180,385.40, 419,703,707.70 and 194,016,084.60 is: 290,631,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,180,385.40 : 419,703,707.70 = 194,016,084.60 : x
  2. Step 2: Convert to fraction form
    280,180,385.40/419,703,707.70 = 194,016,084.60/x
  3. Step 3: Cross multiply
    280,180,385.40x = 419,703,707.70 × 194,016,084.60
  4. Step 4: Simplify right side
    280,180,385.40x = 81,429,270,060,056,864
  5. Step 5: Solve for x
    x = 81,429,270,060,056,864/280,180,385.40
  6. Step 6: Final answer
    x = 290,631,587.02

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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.