Home / 131,220,906.40-196,831,359.60-69,998,903.20

Finding the Fourth Proportional to 131,220,906.40, 196,831,359.60 and 69,998,903.20

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Solution

The fourth proportional to 131,220,906.40, 196,831,359.60 and 69,998,903.20 is: 104,998,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,906.40 : 196,831,359.60 = 69,998,903.20 : x
  2. Step 2: Convert to fraction form
    131,220,906.40/196,831,359.60 = 69,998,903.20/x
  3. Step 3: Cross multiply
    131,220,906.40x = 196,831,359.60 × 69,998,903.20
  4. Step 4: Simplify right side
    131,220,906.40x = 13,777,979,287,364,790
  5. Step 5: Solve for x
    x = 13,777,979,287,364,790/131,220,906.40
  6. Step 6: Final answer
    x = 104,998,354.80

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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.