Home / 13,390,509.35-18,479,105.38-7,511,446.76

Finding the Fourth Proportional to 13,390,509.35, 18,479,105.38 and 7,511,446.76

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Solution

The fourth proportional to 13,390,509.35, 18,479,105.38 and 7,511,446.76 is: 10,365,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,509.35 : 18,479,105.38 = 7,511,446.76 : x
  2. Step 2: Convert to fraction form
    13,390,509.35/18,479,105.38 = 7,511,446.76/x
  3. Step 3: Cross multiply
    13,390,509.35x = 18,479,105.38 × 7,511,446.76
  4. Step 4: Simplify right side
    13,390,509.35x = 138,804,816,141,904.03
  5. Step 5: Solve for x
    x = 138,804,816,141,904.03/13,390,509.35
  6. Step 6: Final answer
    x = 10,365,910.10

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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.