Home / 258,154,100.90-387,117,223.68-73,879,620.11

Finding the Fourth Proportional to 258,154,100.90, 387,117,223.68 and 73,879,620.11

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Solution

The fourth proportional to 258,154,100.90, 387,117,223.68 and 73,879,620.11 is: 110,786,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,154,100.90 : 387,117,223.68 = 73,879,620.11 : x
  2. Step 2: Convert to fraction form
    258,154,100.90/387,117,223.68 = 73,879,620.11/x
  3. Step 3: Cross multiply
    258,154,100.90x = 387,117,223.68 × 73,879,620.11
  4. Step 4: Simplify right side
    258,154,100.90x = 28,600,073,423,309,448
  5. Step 5: Solve for x
    x = 28,600,073,423,309,448/258,154,100.90
  6. Step 6: Final answer
    x = 110,786,825.87

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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.