Home / 15,117,121.60-22,675,682.40-12,424,487.20

Finding the Fourth Proportional to 15,117,121.60, 22,675,682.40 and 12,424,487.20

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Solution

The fourth proportional to 15,117,121.60, 22,675,682.40 and 12,424,487.20 is: 18,636,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117,121.60 : 22,675,682.40 = 12,424,487.20 : x
  2. Step 2: Convert to fraction form
    15,117,121.60/22,675,682.40 = 12,424,487.20/x
  3. Step 3: Cross multiply
    15,117,121.60x = 22,675,682.40 × 12,424,487.20
  4. Step 4: Simplify right side
    15,117,121.60x = 281,733,725,730,065.25
  5. Step 5: Solve for x
    x = 281,733,725,730,065.25/15,117,121.60
  6. Step 6: Final answer
    x = 18,636,730.80

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1.5x scale

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.