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Finding the Fourth Proportional to 269,577,954.20, 404,366,931.30 and 258,996,373.40

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Solution

The fourth proportional to 269,577,954.20, 404,366,931.30 and 258,996,373.40 is: 388,494,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,577,954.20 : 404,366,931.30 = 258,996,373.40 : x
  2. Step 2: Convert to fraction form
    269,577,954.20/404,366,931.30 = 258,996,373.40/x
  3. Step 3: Cross multiply
    269,577,954.20x = 404,366,931.30 × 258,996,373.40
  4. Step 4: Simplify right side
    269,577,954.20x = 104,729,568,729,586,960
  5. Step 5: Solve for x
    x = 104,729,568,729,586,960/269,577,954.20
  6. Step 6: Final answer
    x = 388,494,560.10

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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.