Home / 13,619,561.76-18,795,122.01-7,508,208.96

Finding the Fourth Proportional to 13,619,561.76, 18,795,122.01 and 7,508,208.96

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Solution

The fourth proportional to 13,619,561.76, 18,795,122.01 and 7,508,208.96 is: 10,361,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619,561.76 : 18,795,122.01 = 7,508,208.96 : x
  2. Step 2: Convert to fraction form
    13,619,561.76/18,795,122.01 = 7,508,208.96/x
  3. Step 3: Cross multiply
    13,619,561.76x = 18,795,122.01 × 7,508,208.96
  4. Step 4: Simplify right side
    13,619,561.76x = 141,117,703,479,775.22
  5. Step 5: Solve for x
    x = 141,117,703,479,775.22/13,619,561.76
  6. Step 6: Final answer
    x = 10,361,398.26

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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.