Home / 280,180,443.90-419,703,795.45-194,016,143.10

Finding the Fourth Proportional to 280,180,443.90, 419,703,795.45 and 194,016,143.10

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Solution

The fourth proportional to 280,180,443.90, 419,703,795.45 and 194,016,143.10 is: 290,631,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,180,443.90 : 419,703,795.45 = 194,016,143.10 : x
  2. Step 2: Convert to fraction form
    280,180,443.90/419,703,795.45 = 194,016,143.10/x
  3. Step 3: Cross multiply
    280,180,443.90x = 419,703,795.45 × 194,016,143.10
  4. Step 4: Simplify right side
    280,180,443.90x = 81,429,311,637,640,320
  5. Step 5: Solve for x
    x = 81,429,311,637,640,320/280,180,443.90
  6. Step 6: Final answer
    x = 290,631,674.73

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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.