Home / 18,761,012.07-28,146,369.95-10,986,492.08

Finding the Fourth Proportional to 18,761,012.07, 28,146,369.95 and 10,986,492.08

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Solution

The fourth proportional to 18,761,012.07, 28,146,369.95 and 10,986,492.08 is: 16,482,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761,012.07 : 28,146,369.95 = 10,986,492.08 : x
  2. Step 2: Convert to fraction form
    18,761,012.07/28,146,369.95 = 10,986,492.08/x
  3. Step 3: Cross multiply
    18,761,012.07x = 28,146,369.95 × 10,986,492.08
  4. Step 4: Simplify right side
    18,761,012.07x = 309,229,870,340,760.69
  5. Step 5: Solve for x
    x = 309,229,870,340,760.69/18,761,012.07
  6. Step 6: Final answer
    x = 16,482,579.36

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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.