Home / 13,331,403.40-18,397,347.06-7,530,196.36

Finding the Fourth Proportional to 13,331,403.40, 18,397,347.06 and 7,530,196.36

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Solution

The fourth proportional to 13,331,403.40, 18,397,347.06 and 7,530,196.36 is: 10,391,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,403.40 : 18,397,347.06 = 7,530,196.36 : x
  2. Step 2: Convert to fraction form
    13,331,403.40/18,397,347.06 = 7,530,196.36/x
  3. Step 3: Cross multiply
    13,331,403.40x = 18,397,347.06 × 7,530,196.36
  4. Step 4: Simplify right side
    13,331,403.40x = 138,535,635,864,868.70
  5. Step 5: Solve for x
    x = 138,535,635,864,868.70/13,331,403.40
  6. Step 6: Final answer
    x = 10,391,676.83

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1.5x scale

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.