Home / 725,153,072.80-1,087,729,609.20-626,517,623.20

Finding the Fourth Proportional to 725,153,072.80, 1,087,729,609.20 and 626,517,623.20

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Solution

The fourth proportional to 725,153,072.80, 1,087,729,609.20 and 626,517,623.20 is: 939,776,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,153,072.80 : 1,087,729,609.20 = 626,517,623.20 : x
  2. Step 2: Convert to fraction form
    725,153,072.80/1,087,729,609.20 = 626,517,623.20/x
  3. Step 3: Cross multiply
    725,153,072.80x = 1,087,729,609.20 × 626,517,623.20
  4. Step 4: Simplify right side
    725,153,072.80x = 681,481,769,440,248,960
  5. Step 5: Solve for x
    x = 681,481,769,440,248,960/725,153,072.80
  6. Step 6: Final answer
    x = 939,776,434.80

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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.