Home / 209,040,053.80-313,560,080.70-72,725,437.30

Finding the Fourth Proportional to 209,040,053.80, 313,560,080.70 and 72,725,437.30

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Solution

The fourth proportional to 209,040,053.80, 313,560,080.70 and 72,725,437.30 is: 109,088,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,040,053.80 : 313,560,080.70 = 72,725,437.30 : x
  2. Step 2: Convert to fraction form
    209,040,053.80/313,560,080.70 = 72,725,437.30/x
  3. Step 3: Cross multiply
    209,040,053.80x = 313,560,080.70 × 72,725,437.30
  4. Step 4: Simplify right side
    209,040,053.80x = 22,803,793,988,730,788
  5. Step 5: Solve for x
    x = 22,803,793,988,730,788/209,040,053.80
  6. Step 6: Final answer
    x = 109,088,155.95

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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.