Home / 12,990,719.40-19,490,744.70-12,524,159.40

Finding the Fourth Proportional to 12,990,719.40, 19,490,744.70 and 12,524,159.40

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Solution

The fourth proportional to 12,990,719.40, 19,490,744.70 and 12,524,159.40 is: 18,790,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,719.40 : 19,490,744.70 = 12,524,159.40 : x
  2. Step 2: Convert to fraction form
    12,990,719.40/19,490,744.70 = 12,524,159.40/x
  3. Step 3: Cross multiply
    12,990,719.40x = 19,490,744.70 × 12,524,159.40
  4. Step 4: Simplify right side
    12,990,719.40x = 244,105,193,447,505.19
  5. Step 5: Solve for x
    x = 244,105,193,447,505.19/12,990,719.40
  6. Step 6: Final answer
    x = 18,790,737.14

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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.