Home / 12,528,097.30-18,792,145.95-6,481,479.70

Finding the Fourth Proportional to 12,528,097.30, 18,792,145.95 and 6,481,479.70

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Solution

The fourth proportional to 12,528,097.30, 18,792,145.95 and 6,481,479.70 is: 9,722,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,097.30 : 18,792,145.95 = 6,481,479.70 : x
  2. Step 2: Convert to fraction form
    12,528,097.30/18,792,145.95 = 6,481,479.70/x
  3. Step 3: Cross multiply
    12,528,097.30x = 18,792,145.95 × 6,481,479.70
  4. Step 4: Simplify right side
    12,528,097.30x = 121,800,912,494,362.22
  5. Step 5: Solve for x
    x = 121,800,912,494,362.22/12,528,097.30
  6. Step 6: Final answer
    x = 9,722,219.55

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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.