Home / 143,240,908.40-197,693,386.92-80,522,172.08

Finding the Fourth Proportional to 143,240,908.40, 197,693,386.92 and 80,522,172.08

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Solution

The fourth proportional to 143,240,908.40, 197,693,386.92 and 80,522,172.08 is: 111,132,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,240,908.40 : 197,693,386.92 = 80,522,172.08 : x
  2. Step 2: Convert to fraction form
    143,240,908.40/197,693,386.92 = 80,522,172.08/x
  3. Step 3: Cross multiply
    143,240,908.40x = 197,693,386.92 × 80,522,172.08
  4. Step 4: Simplify right side
    143,240,908.40x = 15,918,700,920,650,260
  5. Step 5: Solve for x
    x = 15,918,700,920,650,260/143,240,908.40
  6. Step 6: Final answer
    x = 111,132,365.04

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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.