Home / 12,571,942.88-17,349,402.48-7,139,473.76

Finding the Fourth Proportional to 12,571,942.88, 17,349,402.48 and 7,139,473.76

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Solution

The fourth proportional to 12,571,942.88, 17,349,402.48 and 7,139,473.76 is: 9,852,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571,942.88 : 17,349,402.48 = 7,139,473.76 : x
  2. Step 2: Convert to fraction form
    12,571,942.88/17,349,402.48 = 7,139,473.76/x
  3. Step 3: Cross multiply
    12,571,942.88x = 17,349,402.48 × 7,139,473.76
  4. Step 4: Simplify right side
    12,571,942.88x = 123,865,603,757,638.92
  5. Step 5: Solve for x
    x = 123,865,603,757,638.92/12,571,942.88
  6. Step 6: Final answer
    x = 9,852,542.68

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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.