Home / 137,673,779.65-189,982,981.97-75,792,789.61

Finding the Fourth Proportional to 137,673,779.65, 189,982,981.97 and 75,792,789.61

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Solution

The fourth proportional to 137,673,779.65, 189,982,981.97 and 75,792,789.61 is: 104,590,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,673,779.65 : 189,982,981.97 = 75,792,789.61 : x
  2. Step 2: Convert to fraction form
    137,673,779.65/189,982,981.97 = 75,792,789.61/x
  3. Step 3: Cross multiply
    137,673,779.65x = 189,982,981.97 × 75,792,789.61
  4. Step 4: Simplify right side
    137,673,779.65x = 14,399,340,180,982,720
  5. Step 5: Solve for x
    x = 14,399,340,180,982,720/137,673,779.65
  6. Step 6: Final answer
    x = 104,590,287.40

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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.