Home / 20,281,631.46-30,401,964.31-12,713,901.54

Finding the Fourth Proportional to 20,281,631.46, 30,401,964.31 and 12,713,901.54

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Solution

The fourth proportional to 20,281,631.46, 30,401,964.31 and 12,713,901.54 is: 19,058,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281,631.46 : 30,401,964.31 = 12,713,901.54 : x
  2. Step 2: Convert to fraction form
    20,281,631.46/30,401,964.31 = 12,713,901.54/x
  3. Step 3: Cross multiply
    20,281,631.46x = 30,401,964.31 × 12,713,901.54
  4. Step 4: Simplify right side
    20,281,631.46x = 386,527,580,859,934
  5. Step 5: Solve for x
    x = 386,527,580,859,934/20,281,631.46
  6. Step 6: Final answer
    x = 19,058,012.25

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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.