Home / 326,332,128.80-489,354,550.92-172,942,247.36

Finding the Fourth Proportional to 326,332,128.80, 489,354,550.92 and 172,942,247.36

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Solution

The fourth proportional to 326,332,128.80, 489,354,550.92 and 172,942,247.36 is: 259,337,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,332,128.80 : 489,354,550.92 = 172,942,247.36 : x
  2. Step 2: Convert to fraction form
    326,332,128.80/489,354,550.92 = 172,942,247.36/x
  3. Step 3: Cross multiply
    326,332,128.80x = 489,354,550.92 × 172,942,247.36
  4. Step 4: Simplify right side
    326,332,128.80x = 84,630,075,791,948,368
  5. Step 5: Solve for x
    x = 84,630,075,791,948,368/326,332,128.80
  6. Step 6: Final answer
    x = 259,337,246.70

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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.