Home / 442,138,831.20-663,208,246.80-399,092,110.20

Finding the Fourth Proportional to 442,138,831.20, 663,208,246.80 and 399,092,110.20

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Solution

The fourth proportional to 442,138,831.20, 663,208,246.80 and 399,092,110.20 is: 598,638,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,138,831.20 : 663,208,246.80 = 399,092,110.20 : x
  2. Step 2: Convert to fraction form
    442,138,831.20/663,208,246.80 = 399,092,110.20/x
  3. Step 3: Cross multiply
    442,138,831.20x = 663,208,246.80 × 399,092,110.20
  4. Step 4: Simplify right side
    442,138,831.20x = 264,681,178,717,454,368
  5. Step 5: Solve for x
    x = 264,681,178,717,454,368/442,138,831.20
  6. Step 6: Final answer
    x = 598,638,165.30

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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.