Home / 149,996,900.70-207,003,760.14-83,913,456.78

Finding the Fourth Proportional to 149,996,900.70, 207,003,760.14 and 83,913,456.78

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Solution

The fourth proportional to 149,996,900.70, 207,003,760.14 and 83,913,456.78 is: 115,805,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,996,900.70 : 207,003,760.14 = 83,913,456.78 : x
  2. Step 2: Convert to fraction form
    149,996,900.70/207,003,760.14 = 83,913,456.78/x
  3. Step 3: Cross multiply
    149,996,900.70x = 207,003,760.14 × 83,913,456.78
  4. Step 4: Simplify right side
    149,996,900.70x = 17,370,401,079,805,376
  5. Step 5: Solve for x
    x = 17,370,401,079,805,376/149,996,900.70
  6. Step 6: Final answer
    x = 115,805,066.63

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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.