Home / 131,220,911.40-196,831,367.10-69,998,908.20

Finding the Fourth Proportional to 131,220,911.40, 196,831,367.10 and 69,998,908.20

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Solution

The fourth proportional to 131,220,911.40, 196,831,367.10 and 69,998,908.20 is: 104,998,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,911.40 : 196,831,367.10 = 69,998,908.20 : x
  2. Step 2: Convert to fraction form
    131,220,911.40/196,831,367.10 = 69,998,908.20/x
  3. Step 3: Cross multiply
    131,220,911.40x = 196,831,367.10 × 69,998,908.20
  4. Step 4: Simplify right side
    131,220,911.40x = 13,777,980,796,513,400
  5. Step 5: Solve for x
    x = 13,777,980,796,513,400/131,220,911.40
  6. Step 6: Final answer
    x = 104,998,362.30

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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.