Home / 280,013,711.40-420,398,480.70-222,570,844.20

Finding the Fourth Proportional to 280,013,711.40, 420,398,480.70 and 222,570,844.20

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Solution

The fourth proportional to 280,013,711.40, 420,398,480.70 and 222,570,844.20 is: 334,156,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,013,711.40 : 420,398,480.70 = 222,570,844.20 : x
  2. Step 2: Convert to fraction form
    280,013,711.40/420,398,480.70 = 222,570,844.20/x
  3. Step 3: Cross multiply
    280,013,711.40x = 420,398,480.70 × 222,570,844.20
  4. Step 4: Simplify right side
    280,013,711.40x = 93,568,444,749,796,400
  5. Step 5: Solve for x
    x = 93,568,444,749,796,400/280,013,711.40
  6. Step 6: Final answer
    x = 334,156,653.55

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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.