Home / 313,690,632.62-432,890,680.35-172,558,815.10

Finding the Fourth Proportional to 313,690,632.62, 432,890,680.35 and 172,558,815.10

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Solution

The fourth proportional to 313,690,632.62, 432,890,680.35 and 172,558,815.10 is: 238,129,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,690,632.62 : 432,890,680.35 = 172,558,815.10 : x
  2. Step 2: Convert to fraction form
    313,690,632.62/432,890,680.35 = 172,558,815.10/x
  3. Step 3: Cross multiply
    313,690,632.62x = 432,890,680.35 × 172,558,815.10
  4. Step 4: Simplify right side
    313,690,632.62x = 74,699,102,867,515,232
  5. Step 5: Solve for x
    x = 74,699,102,867,515,232/313,690,632.62
  6. Step 6: Final answer
    x = 238,129,848.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.