Home / 13,145,116.30-19,717,674.45-12,137,346.70

Finding the Fourth Proportional to 13,145,116.30, 19,717,674.45 and 12,137,346.70

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Solution

The fourth proportional to 13,145,116.30, 19,717,674.45 and 12,137,346.70 is: 18,206,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,116.30 : 19,717,674.45 = 12,137,346.70 : x
  2. Step 2: Convert to fraction form
    13,145,116.30/19,717,674.45 = 12,137,346.70/x
  3. Step 3: Cross multiply
    13,145,116.30x = 19,717,674.45 × 12,137,346.70
  4. Step 4: Simplify right side
    13,145,116.30x = 239,320,250,917,381.78
  5. Step 5: Solve for x
    x = 239,320,250,917,381.78/13,145,116.30
  6. Step 6: Final answer
    x = 18,206,020.05

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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.