Home / 209,960,737.12-289,762,251.04-115,893,562.56

Finding the Fourth Proportional to 209,960,737.12, 289,762,251.04 and 115,893,562.56

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Solution

The fourth proportional to 209,960,737.12, 289,762,251.04 and 115,893,562.56 is: 159,942,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,960,737.12 : 289,762,251.04 = 115,893,562.56 : x
  2. Step 2: Convert to fraction form
    209,960,737.12/289,762,251.04 = 115,893,562.56/x
  3. Step 3: Cross multiply
    209,960,737.12x = 289,762,251.04 × 115,893,562.56
  4. Step 4: Simplify right side
    209,960,737.12x = 33,581,579,568,430,668
  5. Step 5: Solve for x
    x = 33,581,579,568,430,668/209,960,737.12
  6. Step 6: Final answer
    x = 159,942,187.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.