Home / 398,607,870.80-597,911,806.20-360,344,118.80

Finding the Fourth Proportional to 398,607,870.80, 597,911,806.20 and 360,344,118.80

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Solution

The fourth proportional to 398,607,870.80, 597,911,806.20 and 360,344,118.80 is: 540,516,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,607,870.80 : 597,911,806.20 = 360,344,118.80 : x
  2. Step 2: Convert to fraction form
    398,607,870.80/597,911,806.20 = 360,344,118.80/x
  3. Step 3: Cross multiply
    398,607,870.80x = 597,911,806.20 × 360,344,118.80
  4. Step 4: Simplify right side
    398,607,870.80x = 215,454,002,925,255,392
  5. Step 5: Solve for x
    x = 215,454,002,925,255,392/398,607,870.80
  6. Step 6: Final answer
    x = 540,516,178.20

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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.