Home / 20,640,833.43-28,482,665.43-12,152,633.37

Finding the Fourth Proportional to 20,640,833.43, 28,482,665.43 and 12,152,633.37

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Solution

The fourth proportional to 20,640,833.43, 28,482,665.43 and 12,152,633.37 is: 16,769,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,833.43 : 28,482,665.43 = 12,152,633.37 : x
  2. Step 2: Convert to fraction form
    20,640,833.43/28,482,665.43 = 12,152,633.37/x
  3. Step 3: Cross multiply
    20,640,833.43x = 28,482,665.43 × 12,152,633.37
  4. Step 4: Simplify right side
    20,640,833.43x = 346,139,390,371,163.38
  5. Step 5: Solve for x
    x = 346,139,390,371,163.38/20,640,833.43
  6. Step 6: Final answer
    x = 16,769,642.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.