Home / 20,718,650.70-28,584,240.93-12,012,028.74

Finding the Fourth Proportional to 20,718,650.70, 28,584,240.93 and 12,012,028.74

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Solution

The fourth proportional to 20,718,650.70, 28,584,240.93 and 12,012,028.74 is: 16,572,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,650.70 : 28,584,240.93 = 12,012,028.74 : x
  2. Step 2: Convert to fraction form
    20,718,650.70/28,584,240.93 = 12,012,028.74/x
  3. Step 3: Cross multiply
    20,718,650.70x = 28,584,240.93 × 12,012,028.74
  4. Step 4: Simplify right side
    20,718,650.70x = 343,354,723,562,244.31
  5. Step 5: Solve for x
    x = 343,354,723,562,244.31/20,718,650.70
  6. Step 6: Final answer
    x = 16,572,253.11

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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.