Home / 20,630,140.80-30,945,211.20-18,398,088.60

Finding the Fourth Proportional to 20,630,140.80, 30,945,211.20 and 18,398,088.60

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Solution

The fourth proportional to 20,630,140.80, 30,945,211.20 and 18,398,088.60 is: 27,597,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,140.80 : 30,945,211.20 = 18,398,088.60 : x
  2. Step 2: Convert to fraction form
    20,630,140.80/30,945,211.20 = 18,398,088.60/x
  3. Step 3: Cross multiply
    20,630,140.80x = 30,945,211.20 × 18,398,088.60
  4. Step 4: Simplify right side
    20,630,140.80x = 569,332,737,403,312.38
  5. Step 5: Solve for x
    x = 569,332,737,403,312.38/20,630,140.80
  6. Step 6: Final answer
    x = 27,597,132.90

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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.