Home / 21,879,743.10-32,849,163.45-12,791,154.30

Finding the Fourth Proportional to 21,879,743.10, 32,849,163.45 and 12,791,154.30

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Solution

The fourth proportional to 21,879,743.10, 32,849,163.45 and 12,791,154.30 is: 19,204,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,743.10 : 32,849,163.45 = 12,791,154.30 : x
  2. Step 2: Convert to fraction form
    21,879,743.10/32,849,163.45 = 12,791,154.30/x
  3. Step 3: Cross multiply
    21,879,743.10x = 32,849,163.45 × 12,791,154.30
  4. Step 4: Simplify right side
    21,879,743.10x = 420,178,718,314,870.38
  5. Step 5: Solve for x
    x = 420,178,718,314,870.38/21,879,743.10
  6. Step 6: Final answer
    x = 19,204,006.02

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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.