Home / 29,214,922.80-40,309,350-18,889,221.12

Finding the Fourth Proportional to 29,214,922.80, 40,309,350 and 18,889,221.12

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Solution

The fourth proportional to 29,214,922.80, 40,309,350 and 18,889,221.12 is: 26,062,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,214,922.80 : 40,309,350 = 18,889,221.12 : x
  2. Step 2: Convert to fraction form
    29,214,922.80/40,309,350 = 18,889,221.12/x
  3. Step 3: Cross multiply
    29,214,922.80x = 40,309,350 × 18,889,221.12
  4. Step 4: Simplify right side
    29,214,922.80x = 761,412,225,353,472
  5. Step 5: Solve for x
    x = 761,412,225,353,472/29,214,922.80
  6. Step 6: Final answer
    x = 26,062,441.81

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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.