Home / 282,958,306.76-424,437,432.78-78,486,390.92

Finding the Fourth Proportional to 282,958,306.76, 424,437,432.78 and 78,486,390.92

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Solution

The fourth proportional to 282,958,306.76, 424,437,432.78 and 78,486,390.92 is: 117,729,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,958,306.76 : 424,437,432.78 = 78,486,390.92 : x
  2. Step 2: Convert to fraction form
    282,958,306.76/424,437,432.78 = 78,486,390.92/x
  3. Step 3: Cross multiply
    282,958,306.76x = 424,437,432.78 × 78,486,390.92
  4. Step 4: Simplify right side
    282,958,306.76x = 33,312,562,270,252,300
  5. Step 5: Solve for x
    x = 33,312,562,270,252,300/282,958,306.76
  6. Step 6: Final answer
    x = 117,729,578.79

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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.