Home / 398,726,864.80-598,090,297.20-344,979,152.80

Finding the Fourth Proportional to 398,726,864.80, 598,090,297.20 and 344,979,152.80

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Solution

The fourth proportional to 398,726,864.80, 598,090,297.20 and 344,979,152.80 is: 517,468,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,726,864.80 : 598,090,297.20 = 344,979,152.80 : x
  2. Step 2: Convert to fraction form
    398,726,864.80/598,090,297.20 = 344,979,152.80/x
  3. Step 3: Cross multiply
    398,726,864.80x = 598,090,297.20 × 344,979,152.80
  4. Step 4: Simplify right side
    398,726,864.80x = 206,328,684,025,956,224
  5. Step 5: Solve for x
    x = 206,328,684,025,956,224/398,726,864.80
  6. Step 6: Final answer
    x = 517,468,729.20

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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.