Home / 209,040,025.80-313,560,038.70-72,725,409.30

Finding the Fourth Proportional to 209,040,025.80, 313,560,038.70 and 72,725,409.30

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Solution

The fourth proportional to 209,040,025.80, 313,560,038.70 and 72,725,409.30 is: 109,088,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,040,025.80 : 313,560,038.70 = 72,725,409.30 : x
  2. Step 2: Convert to fraction form
    209,040,025.80/313,560,038.70 = 72,725,409.30/x
  3. Step 3: Cross multiply
    209,040,025.80x = 313,560,038.70 × 72,725,409.30
  4. Step 4: Simplify right side
    209,040,025.80x = 22,803,782,154,581,340
  5. Step 5: Solve for x
    x = 22,803,782,154,581,340/209,040,025.80
  6. Step 6: Final answer
    x = 109,088,113.95

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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.