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Finding the Fourth Proportional to 247,662,986.40, 371,494,479.60 and 166,033,648.80

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Solution

The fourth proportional to 247,662,986.40, 371,494,479.60 and 166,033,648.80 is: 249,050,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,662,986.40 : 371,494,479.60 = 166,033,648.80 : x
  2. Step 2: Convert to fraction form
    247,662,986.40/371,494,479.60 = 166,033,648.80/x
  3. Step 3: Cross multiply
    247,662,986.40x = 371,494,479.60 × 166,033,648.80
  4. Step 4: Simplify right side
    247,662,986.40x = 61,680,583,957,045,176
  5. Step 5: Solve for x
    x = 61,680,583,957,045,176/247,662,986.40
  6. Step 6: Final answer
    x = 249,050,473.20

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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.