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Finding the Fourth Proportional to 578,896,980.80, 868,080,050.40 and 255,614,446.40

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Solution

The fourth proportional to 578,896,980.80, 868,080,050.40 and 255,614,446.40 is: 383,304,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,896,980.80 : 868,080,050.40 = 255,614,446.40 : x
  2. Step 2: Convert to fraction form
    578,896,980.80/868,080,050.40 = 255,614,446.40/x
  3. Step 3: Cross multiply
    578,896,980.80x = 868,080,050.40 × 255,614,446.40
  4. Step 4: Simplify right side
    578,896,980.80x = 221,893,801,513,880,096
  5. Step 5: Solve for x
    x = 221,893,801,513,880,096/578,896,980.80
  6. Step 6: Final answer
    x = 383,304,471.91

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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.