Home / 281,205,818.40-421,808,727.60-99,452,996.40

Finding the Fourth Proportional to 281,205,818.40, 421,808,727.60 and 99,452,996.40

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Solution

The fourth proportional to 281,205,818.40, 421,808,727.60 and 99,452,996.40 is: 149,179,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,205,818.40 : 421,808,727.60 = 99,452,996.40 : x
  2. Step 2: Convert to fraction form
    281,205,818.40/421,808,727.60 = 99,452,996.40/x
  3. Step 3: Cross multiply
    281,205,818.40x = 421,808,727.60 × 99,452,996.40
  4. Step 4: Simplify right side
    281,205,818.40x = 41,950,141,867,491,384
  5. Step 5: Solve for x
    x = 41,950,141,867,491,384/281,205,818.40
  6. Step 6: Final answer
    x = 149,179,494.60

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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.