Home / 30,632,435.20-45,948,652.80-10,432,806.40

Finding the Fourth Proportional to 30,632,435.20, 45,948,652.80 and 10,432,806.40

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Solution

The fourth proportional to 30,632,435.20, 45,948,652.80 and 10,432,806.40 is: 15,649,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632,435.20 : 45,948,652.80 = 10,432,806.40 : x
  2. Step 2: Convert to fraction form
    30,632,435.20/45,948,652.80 = 10,432,806.40/x
  3. Step 3: Cross multiply
    30,632,435.20x = 45,948,652.80 × 10,432,806.40
  4. Step 4: Simplify right side
    30,632,435.20x = 479,373,399,003,217.88
  5. Step 5: Solve for x
    x = 479,373,399,003,217.88/30,632,435.20
  6. Step 6: Final answer
    x = 15,649,209.60

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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.