Home / 484,454,078.40-726,849,079.20-212,020,363.20

Finding the Fourth Proportional to 484,454,078.40, 726,849,079.20 and 212,020,363.20

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Solution

The fourth proportional to 484,454,078.40, 726,849,079.20 and 212,020,363.20 is: 318,104,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,454,078.40 : 726,849,079.20 = 212,020,363.20 : x
  2. Step 2: Convert to fraction form
    484,454,078.40/726,849,079.20 = 212,020,363.20/x
  3. Step 3: Cross multiply
    484,454,078.40x = 726,849,079.20 × 212,020,363.20
  4. Step 4: Simplify right side
    484,454,078.40x = 154,106,805,763,569,568
  5. Step 5: Solve for x
    x = 154,106,805,763,569,568/484,454,078.40
  6. Step 6: Final answer
    x = 318,104,052.86

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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.