Home / 338,791,844.40-508,565,680.20-316,589,420.40

Finding the Fourth Proportional to 338,791,844.40, 508,565,680.20 and 316,589,420.40

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Solution

The fourth proportional to 338,791,844.40, 508,565,680.20 and 316,589,420.40 is: 475,237,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,791,844.40 : 508,565,680.20 = 316,589,420.40 : x
  2. Step 2: Convert to fraction form
    338,791,844.40/508,565,680.20 = 316,589,420.40/x
  3. Step 3: Cross multiply
    338,791,844.40x = 508,565,680.20 × 316,589,420.40
  4. Step 4: Simplify right side
    338,791,844.40x = 161,006,513,929,849,728
  5. Step 5: Solve for x
    x = 161,006,513,929,849,728/338,791,844.40
  6. Step 6: Final answer
    x = 475,237,277.97

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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.