Home / 20,914,219.20-31,348,000.80-8,130,475.20

Finding the Fourth Proportional to 20,914,219.20, 31,348,000.80 and 8,130,475.20

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Solution

The fourth proportional to 20,914,219.20, 31,348,000.80 and 8,130,475.20 is: 12,186,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914,219.20 : 31,348,000.80 = 8,130,475.20 : x
  2. Step 2: Convert to fraction form
    20,914,219.20/31,348,000.80 = 8,130,475.20/x
  3. Step 3: Cross multiply
    20,914,219.20x = 31,348,000.80 × 8,130,475.20
  4. Step 4: Simplify right side
    20,914,219.20x = 254,874,143,073,980.19
  5. Step 5: Solve for x
    x = 254,874,143,073,980.19/20,914,219.20
  6. Step 6: Final answer
    x = 12,186,643.96

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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.