Home / 20,632,597.20-30,948,895.80-18,869,000.40

Finding the Fourth Proportional to 20,632,597.20, 30,948,895.80 and 18,869,000.40

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Solution

The fourth proportional to 20,632,597.20, 30,948,895.80 and 18,869,000.40 is: 28,303,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632,597.20 : 30,948,895.80 = 18,869,000.40 : x
  2. Step 2: Convert to fraction form
    20,632,597.20/30,948,895.80 = 18,869,000.40/x
  3. Step 3: Cross multiply
    20,632,597.20x = 30,948,895.80 × 18,869,000.40
  4. Step 4: Simplify right side
    20,632,597.20x = 583,974,727,229,758.25
  5. Step 5: Solve for x
    x = 583,974,727,229,758.25/20,632,597.20
  6. Step 6: Final answer
    x = 28,303,500.60

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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.