Home / 13,065,388.91-18,031,246.67-7,838,593.78

Finding the Fourth Proportional to 13,065,388.91, 18,031,246.67 and 7,838,593.78

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Solution

The fourth proportional to 13,065,388.91, 18,031,246.67 and 7,838,593.78 is: 10,817,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065,388.91 : 18,031,246.67 = 7,838,593.78 : x
  2. Step 2: Convert to fraction form
    13,065,388.91/18,031,246.67 = 7,838,593.78/x
  3. Step 3: Cross multiply
    13,065,388.91x = 18,031,246.67 × 7,838,593.78
  4. Step 4: Simplify right side
    13,065,388.91x = 141,339,617,957,342.59
  5. Step 5: Solve for x
    x = 141,339,617,957,342.59/13,065,388.91
  6. Step 6: Final answer
    x = 10,817,865.35

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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.