Home / 12,688,039.90-17,509,512.78-6,886,822.84

Finding the Fourth Proportional to 12,688,039.90, 17,509,512.78 and 6,886,822.84

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Solution

The fourth proportional to 12,688,039.90, 17,509,512.78 and 6,886,822.84 is: 9,503,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,039.90 : 17,509,512.78 = 6,886,822.84 : x
  2. Step 2: Convert to fraction form
    12,688,039.90/17,509,512.78 = 6,886,822.84/x
  3. Step 3: Cross multiply
    12,688,039.90x = 17,509,512.78 × 6,886,822.84
  4. Step 4: Simplify right side
    12,688,039.90x = 120,584,912,530,575.91
  5. Step 5: Solve for x
    x = 120,584,912,530,575.91/12,688,039.90
  6. Step 6: Final answer
    x = 9,503,825.14

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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.