Home / 326,424,012.85-489,636,019.28-252,447,425.65

Finding the Fourth Proportional to 326,424,012.85, 489,636,019.28 and 252,447,425.65

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Solution

The fourth proportional to 326,424,012.85, 489,636,019.28 and 252,447,425.65 is: 378,671,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,424,012.85 : 489,636,019.28 = 252,447,425.65 : x
  2. Step 2: Convert to fraction form
    326,424,012.85/489,636,019.28 = 252,447,425.65/x
  3. Step 3: Cross multiply
    326,424,012.85x = 489,636,019.28 × 252,447,425.65
  4. Step 4: Simplify right side
    326,424,012.85x = 123,607,352,571,487,520
  5. Step 5: Solve for x
    x = 123,607,352,571,487,520/326,424,012.85
  6. Step 6: Final answer
    x = 378,671,138.48

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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.