Home / 20,675,233.20-31,012,849.80-13,872,788.40

Finding the Fourth Proportional to 20,675,233.20, 31,012,849.80 and 13,872,788.40

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Solution

The fourth proportional to 20,675,233.20, 31,012,849.80 and 13,872,788.40 is: 20,809,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675,233.20 : 31,012,849.80 = 13,872,788.40 : x
  2. Step 2: Convert to fraction form
    20,675,233.20/31,012,849.80 = 13,872,788.40/x
  3. Step 3: Cross multiply
    20,675,233.20x = 31,012,849.80 × 13,872,788.40
  4. Step 4: Simplify right side
    20,675,233.20x = 430,234,702,956,382.31
  5. Step 5: Solve for x
    x = 430,234,702,956,382.31/20,675,233.20
  6. Step 6: Final answer
    x = 20,809,182.60

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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.