Home / 209,040,039.80-313,560,059.70-72,725,423.30

Finding the Fourth Proportional to 209,040,039.80, 313,560,059.70 and 72,725,423.30

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Solution

The fourth proportional to 209,040,039.80, 313,560,059.70 and 72,725,423.30 is: 109,088,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,040,039.80 : 313,560,059.70 = 72,725,423.30 : x
  2. Step 2: Convert to fraction form
    209,040,039.80/313,560,059.70 = 72,725,423.30/x
  3. Step 3: Cross multiply
    209,040,039.80x = 313,560,059.70 × 72,725,423.30
  4. Step 4: Simplify right side
    209,040,039.80x = 22,803,788,071,655,768
  5. Step 5: Solve for x
    x = 22,803,788,071,655,768/209,040,039.80
  6. Step 6: Final answer
    x = 109,088,134.95

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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.