Home / 12,688,091.67-17,509,580.69-6,886,871.85

Finding the Fourth Proportional to 12,688,091.67, 17,509,580.69 and 6,886,871.85

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Solution

The fourth proportional to 12,688,091.67, 17,509,580.69 and 6,886,871.85 is: 9,503,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,091.67 : 17,509,580.69 = 6,886,871.85 : x
  2. Step 2: Convert to fraction form
    12,688,091.67/17,509,580.69 = 6,886,871.85/x
  3. Step 3: Cross multiply
    12,688,091.67x = 17,509,580.69 × 6,886,871.85
  4. Step 4: Simplify right side
    12,688,091.67x = 120,586,238,324,830.20
  5. Step 5: Solve for x
    x = 120,586,238,324,830.20/12,688,091.67
  6. Step 6: Final answer
    x = 9,503,890.85

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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.