Home / 12,540,934.28-18,810,488.12-5,626,554.72

Finding the Fourth Proportional to 12,540,934.28, 18,810,488.12 and 5,626,554.72

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Solution

The fourth proportional to 12,540,934.28, 18,810,488.12 and 5,626,554.72 is: 8,439,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540,934.28 : 18,810,488.12 = 5,626,554.72 : x
  2. Step 2: Convert to fraction form
    12,540,934.28/18,810,488.12 = 5,626,554.72/x
  3. Step 3: Cross multiply
    12,540,934.28x = 18,810,488.12 × 5,626,554.72
  4. Step 4: Simplify right side
    12,540,934.28x = 105,838,240,688,957.14
  5. Step 5: Solve for x
    x = 105,838,240,688,957.14/12,540,934.28
  6. Step 6: Final answer
    x = 8,439,422.32

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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.