Home / 12,049,828.80-18,069,040.80-7,002,686.40

Finding the Fourth Proportional to 12,049,828.80, 18,069,040.80 and 7,002,686.40

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Solution

The fourth proportional to 12,049,828.80, 18,069,040.80 and 7,002,686.40 is: 10,500,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049,828.80 : 18,069,040.80 = 7,002,686.40 : x
  2. Step 2: Convert to fraction form
    12,049,828.80/18,069,040.80 = 7,002,686.40/x
  3. Step 3: Cross multiply
    12,049,828.80x = 18,069,040.80 × 7,002,686.40
  4. Step 4: Simplify right side
    12,049,828.80x = 126,531,826,271,205.12
  5. Step 5: Solve for x
    x = 126,531,826,271,205.12/12,049,828.80
  6. Step 6: Final answer
    x = 10,500,715.68

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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.