Home / 12,979,968.24-17,917,871.49-8,087,607.51

Finding the Fourth Proportional to 12,979,968.24, 17,917,871.49 and 8,087,607.51

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Solution

The fourth proportional to 12,979,968.24, 17,917,871.49 and 8,087,607.51 is: 11,164,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,968.24 : 17,917,871.49 = 8,087,607.51 : x
  2. Step 2: Convert to fraction form
    12,979,968.24/17,917,871.49 = 8,087,607.51/x
  3. Step 3: Cross multiply
    12,979,968.24x = 17,917,871.49 × 8,087,607.51
  4. Step 4: Simplify right side
    12,979,968.24x = 144,912,712,025,738.88
  5. Step 5: Solve for x
    x = 144,912,712,025,738.88/12,979,968.24
  6. Step 6: Final answer
    x = 11,164,334.87

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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.