Home / 20,341,624.80-30,512,437.20-12,263,721.60

Finding the Fourth Proportional to 20,341,624.80, 30,512,437.20 and 12,263,721.60

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Solution

The fourth proportional to 20,341,624.80, 30,512,437.20 and 12,263,721.60 is: 18,395,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,624.80 : 30,512,437.20 = 12,263,721.60 : x
  2. Step 2: Convert to fraction form
    20,341,624.80/30,512,437.20 = 12,263,721.60/x
  3. Step 3: Cross multiply
    20,341,624.80x = 30,512,437.20 × 12,263,721.60
  4. Step 4: Simplify right side
    20,341,624.80x = 374,196,035,158,283.50
  5. Step 5: Solve for x
    x = 374,196,035,158,283.50/20,341,624.80
  6. Step 6: Final answer
    x = 18,395,582.40

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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.