Home / 12,688,086.67-17,509,573.79-6,886,866.87

Finding the Fourth Proportional to 12,688,086.67, 17,509,573.79 and 6,886,866.87

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Solution

The fourth proportional to 12,688,086.67, 17,509,573.79 and 6,886,866.87 is: 9,503,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,086.67 : 17,509,573.79 = 6,886,866.87 : x
  2. Step 2: Convert to fraction form
    12,688,086.67/17,509,573.79 = 6,886,866.87/x
  3. Step 3: Cross multiply
    12,688,086.67x = 17,509,573.79 × 6,886,866.87
  4. Step 4: Simplify right side
    12,688,086.67x = 120,586,103,642,171.33
  5. Step 5: Solve for x
    x = 120,586,103,642,171.33/12,688,086.67
  6. Step 6: Final answer
    x = 9,503,883.98

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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.