Home / 20,156,267.80-30,234,401.70-15,054,434.20

Finding the Fourth Proportional to 20,156,267.80, 30,234,401.70 and 15,054,434.20

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Solution

The fourth proportional to 20,156,267.80, 30,234,401.70 and 15,054,434.20 is: 22,581,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,267.80 : 30,234,401.70 = 15,054,434.20 : x
  2. Step 2: Convert to fraction form
    20,156,267.80/30,234,401.70 = 15,054,434.20/x
  3. Step 3: Cross multiply
    20,156,267.80x = 30,234,401.70 × 15,054,434.20
  4. Step 4: Simplify right side
    20,156,267.80x = 455,161,810,969,018.12
  5. Step 5: Solve for x
    x = 455,161,810,969,018.12/20,156,267.80
  6. Step 6: Final answer
    x = 22,581,651.30

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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.