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Finding the Fourth Proportional to 293,452,853.80, 440,179,280.70 and 279,103,946.80

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Solution

The fourth proportional to 293,452,853.80, 440,179,280.70 and 279,103,946.80 is: 418,655,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,452,853.80 : 440,179,280.70 = 279,103,946.80 : x
  2. Step 2: Convert to fraction form
    293,452,853.80/440,179,280.70 = 279,103,946.80/x
  3. Step 3: Cross multiply
    293,452,853.80x = 440,179,280.70 × 279,103,946.80
  4. Step 4: Simplify right side
    293,452,853.80x = 122,855,774,542,955,072
  5. Step 5: Solve for x
    x = 122,855,774,542,955,072/293,452,853.80
  6. Step 6: Final answer
    x = 418,655,920.20

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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.