Home / 408,076,920.68-611,218,145.03-337,244,374.40

Finding the Fourth Proportional to 408,076,920.68, 611,218,145.03 and 337,244,374.40

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Solution

The fourth proportional to 408,076,920.68, 611,218,145.03 and 337,244,374.40 is: 505,125,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,076,920.68 : 611,218,145.03 = 337,244,374.40 : x
  2. Step 2: Convert to fraction form
    408,076,920.68/611,218,145.03 = 337,244,374.40/x
  3. Step 3: Cross multiply
    408,076,920.68x = 611,218,145.03 × 337,244,374.40
  4. Step 4: Simplify right side
    408,076,920.68x = 206,129,880,937,828,480
  5. Step 5: Solve for x
    x = 206,129,880,937,828,480/408,076,920.68
  6. Step 6: Final answer
    x = 505,125,064.65

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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.