Home / 136,594,396.38-188,511,125.88-87,057,009.30

Finding the Fourth Proportional to 136,594,396.38, 188,511,125.88 and 87,057,009.30

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Solution

The fourth proportional to 136,594,396.38, 188,511,125.88 and 87,057,009.30 is: 120,145,593.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594,396.38 : 188,511,125.88 = 87,057,009.30 : x
  2. Step 2: Convert to fraction form
    136,594,396.38/188,511,125.88 = 87,057,009.30/x
  3. Step 3: Cross multiply
    136,594,396.38x = 188,511,125.88 × 87,057,009.30
  4. Step 4: Simplify right side
    136,594,396.38x = 16,411,214,838,888,630
  5. Step 5: Solve for x
    x = 16,411,214,838,888,630/136,594,396.38
  6. Step 6: Final answer
    x = 120,145,593.62

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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.