Home / 12,051,053.30-18,058,860.64-7,122,011.84

Finding the Fourth Proportional to 12,051,053.30, 18,058,860.64 and 7,122,011.84

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Solution

The fourth proportional to 12,051,053.30, 18,058,860.64 and 7,122,011.84 is: 10,672,545.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051,053.30 : 18,058,860.64 = 7,122,011.84 : x
  2. Step 2: Convert to fraction form
    12,051,053.30/18,058,860.64 = 7,122,011.84/x
  3. Step 3: Cross multiply
    12,051,053.30x = 18,058,860.64 × 7,122,011.84
  4. Step 4: Simplify right side
    12,051,053.30x = 128,615,419,294,989.98
  5. Step 5: Solve for x
    x = 128,615,419,294,989.98/12,051,053.30
  6. Step 6: Final answer
    x = 10,672,545.88

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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.