Home / 12,889,825.96-17,788,428.12-7,384,264.96

Finding the Fourth Proportional to 12,889,825.96, 17,788,428.12 and 7,384,264.96

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Solution

The fourth proportional to 12,889,825.96, 17,788,428.12 and 7,384,264.96 is: 10,190,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,825.96 : 17,788,428.12 = 7,384,264.96 : x
  2. Step 2: Convert to fraction form
    12,889,825.96/17,788,428.12 = 7,384,264.96/x
  3. Step 3: Cross multiply
    12,889,825.96x = 17,788,428.12 × 7,384,264.96
  4. Step 4: Simplify right side
    12,889,825.96x = 131,354,466,459,994.69
  5. Step 5: Solve for x
    x = 131,354,466,459,994.69/12,889,825.96
  6. Step 6: Final answer
    x = 10,190,553.92

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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.