Home / 13,146,808.32-18,142,470.72-7,346,589.12

Finding the Fourth Proportional to 13,146,808.32, 18,142,470.72 and 7,346,589.12

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Solution

The fourth proportional to 13,146,808.32, 18,142,470.72 and 7,346,589.12 is: 10,138,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,808.32 : 18,142,470.72 = 7,346,589.12 : x
  2. Step 2: Convert to fraction form
    13,146,808.32/18,142,470.72 = 7,346,589.12/x
  3. Step 3: Cross multiply
    13,146,808.32x = 18,142,470.72 × 7,346,589.12
  4. Step 4: Simplify right side
    13,146,808.32x = 133,285,278,001,470.56
  5. Step 5: Solve for x
    x = 133,285,278,001,470.56/13,146,808.32
  6. Step 6: Final answer
    x = 10,138,223.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.