Home / 28,479,738.63-39,302,228.01-15,426,997.54

Finding the Fourth Proportional to 28,479,738.63, 39,302,228.01 and 15,426,997.54

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Solution

The fourth proportional to 28,479,738.63, 39,302,228.01 and 15,426,997.54 is: 21,289,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,738.63 : 39,302,228.01 = 15,426,997.54 : x
  2. Step 2: Convert to fraction form
    28,479,738.63/39,302,228.01 = 15,426,997.54/x
  3. Step 3: Cross multiply
    28,479,738.63x = 39,302,228.01 × 15,426,997.54
  4. Step 4: Simplify right side
    28,479,738.63x = 606,315,374,826,789
  5. Step 5: Solve for x
    x = 606,315,374,826,789/28,479,738.63
  6. Step 6: Final answer
    x = 21,289,358.82

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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.