Home / 269,139,340.80-371,412,233.28-145,380,021.12

Finding the Fourth Proportional to 269,139,340.80, 371,412,233.28 and 145,380,021.12

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Solution

The fourth proportional to 269,139,340.80, 371,412,233.28 and 145,380,021.12 is: 200,624,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,139,340.80 : 371,412,233.28 = 145,380,021.12 : x
  2. Step 2: Convert to fraction form
    269,139,340.80/371,412,233.28 = 145,380,021.12/x
  3. Step 3: Cross multiply
    269,139,340.80x = 371,412,233.28 × 145,380,021.12
  4. Step 4: Simplify right side
    269,139,340.80x = 53,995,918,318,472,768
  5. Step 5: Solve for x
    x = 53,995,918,318,472,768/269,139,340.80
  6. Step 6: Final answer
    x = 200,624,398.34

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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.