Home / 12,591,939-17,376,875.82-7,159,431

Finding the Fourth Proportional to 12,591,939, 17,376,875.82 and 7,159,431

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Solution

The fourth proportional to 12,591,939, 17,376,875.82 and 7,159,431 is: 9,880,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,939 : 17,376,875.82 = 7,159,431 : x
  2. Step 2: Convert to fraction form
    12,591,939/17,376,875.82 = 7,159,431/x
  3. Step 3: Cross multiply
    12,591,939x = 17,376,875.82 × 7,159,431
  4. Step 4: Simplify right side
    12,591,939x = 124,408,543,428,858.42
  5. Step 5: Solve for x
    x = 124,408,543,428,858.42/12,591,939
  6. Step 6: Final answer
    x = 9,880,014.78

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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.