Home / 12,949,417.20-19,424,125.80-10,555,964.40

Finding the Fourth Proportional to 12,949,417.20, 19,424,125.80 and 10,555,964.40

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Solution

The fourth proportional to 12,949,417.20, 19,424,125.80 and 10,555,964.40 is: 15,833,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,417.20 : 19,424,125.80 = 10,555,964.40 : x
  2. Step 2: Convert to fraction form
    12,949,417.20/19,424,125.80 = 10,555,964.40/x
  3. Step 3: Cross multiply
    12,949,417.20x = 19,424,125.80 × 10,555,964.40
  4. Step 4: Simplify right side
    12,949,417.20x = 205,040,380,445,921.53
  5. Step 5: Solve for x
    x = 205,040,380,445,921.53/12,949,417.20
  6. Step 6: Final answer
    x = 15,833,946.60

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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.