Home / 165,280,609.40-247,920,914.10-147,424,191.80

Finding the Fourth Proportional to 165,280,609.40, 247,920,914.10 and 147,424,191.80

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Solution

The fourth proportional to 165,280,609.40, 247,920,914.10 and 147,424,191.80 is: 221,136,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,280,609.40 : 247,920,914.10 = 147,424,191.80 : x
  2. Step 2: Convert to fraction form
    165,280,609.40/247,920,914.10 = 147,424,191.80/x
  3. Step 3: Cross multiply
    165,280,609.40x = 247,920,914.10 × 147,424,191.80
  4. Step 4: Simplify right side
    165,280,609.40x = 36,549,540,391,509,728
  5. Step 5: Solve for x
    x = 36,549,540,391,509,728/165,280,609.40
  6. Step 6: Final answer
    x = 221,136,287.70

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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.