Home / 12,658,241.28-18,999,836.64-9,019,013.76

Finding the Fourth Proportional to 12,658,241.28, 18,999,836.64 and 9,019,013.76

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Solution

The fourth proportional to 12,658,241.28, 18,999,836.64 and 9,019,013.76 is: 13,537,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,241.28 : 18,999,836.64 = 9,019,013.76 : x
  2. Step 2: Convert to fraction form
    12,658,241.28/18,999,836.64 = 9,019,013.76/x
  3. Step 3: Cross multiply
    12,658,241.28x = 18,999,836.64 × 9,019,013.76
  4. Step 4: Simplify right side
    12,658,241.28x = 171,359,788,093,912.16
  5. Step 5: Solve for x
    x = 171,359,788,093,912.16/12,658,241.28
  6. Step 6: Final answer
    x = 13,537,408.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.