Home / 131,138,999.10-196,708,498.65-40,250,778.30

Finding the Fourth Proportional to 131,138,999.10, 196,708,498.65 and 40,250,778.30

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Solution

The fourth proportional to 131,138,999.10, 196,708,498.65 and 40,250,778.30 is: 60,376,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138,999.10 : 196,708,498.65 = 40,250,778.30 : x
  2. Step 2: Convert to fraction form
    131,138,999.10/196,708,498.65 = 40,250,778.30/x
  3. Step 3: Cross multiply
    131,138,999.10x = 196,708,498.65 × 40,250,778.30
  4. Step 4: Simplify right side
    131,138,999.10x = 7,917,670,168,886,999
  5. Step 5: Solve for x
    x = 7,917,670,168,886,999/131,138,999.10
  6. Step 6: Final answer
    x = 60,376,167.45

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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.