Home / 85,163,998.20-127,745,997.30-30,602,722.20

Finding the Fourth Proportional to 85,163,998.20, 127,745,997.30 and 30,602,722.20

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Solution

The fourth proportional to 85,163,998.20, 127,745,997.30 and 30,602,722.20 is: 45,904,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,163,998.20 : 127,745,997.30 = 30,602,722.20 : x
  2. Step 2: Convert to fraction form
    85,163,998.20/127,745,997.30 = 30,602,722.20/x
  3. Step 3: Cross multiply
    85,163,998.20x = 127,745,997.30 × 30,602,722.20
  4. Step 4: Simplify right side
    85,163,998.20x = 3,909,375,267,533,850
  5. Step 5: Solve for x
    x = 3,909,375,267,533,850/85,163,998.20
  6. Step 6: Final answer
    x = 45,904,083.30

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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.