Home / 12,479,525.40-18,722,787.30-5,294,501.40

Finding the Fourth Proportional to 12,479,525.40, 18,722,787.30 and 5,294,501.40

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Solution

The fourth proportional to 12,479,525.40, 18,722,787.30 and 5,294,501.40 is: 7,943,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,525.40 : 18,722,787.30 = 5,294,501.40 : x
  2. Step 2: Convert to fraction form
    12,479,525.40/18,722,787.30 = 5,294,501.40/x
  3. Step 3: Cross multiply
    12,479,525.40x = 18,722,787.30 × 5,294,501.40
  4. Step 4: Simplify right side
    12,479,525.40x = 99,127,823,571,752.23
  5. Step 5: Solve for x
    x = 99,127,823,571,752.23/12,479,525.40
  6. Step 6: Final answer
    x = 7,943,236.65

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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.