Home / 20,623,562.25-30,935,146.41-12,538,770

Finding the Fourth Proportional to 20,623,562.25, 30,935,146.41 and 12,538,770

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Solution

The fourth proportional to 20,623,562.25, 30,935,146.41 and 12,538,770 is: 18,808,035.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623,562.25 : 30,935,146.41 = 12,538,770 : x
  2. Step 2: Convert to fraction form
    20,623,562.25/30,935,146.41 = 12,538,770/x
  3. Step 3: Cross multiply
    20,623,562.25x = 30,935,146.41 × 12,538,770
  4. Step 4: Simplify right side
    20,623,562.25x = 387,888,685,751,315.69
  5. Step 5: Solve for x
    x = 387,888,685,751,315.69/20,623,562.25
  6. Step 6: Final answer
    x = 18,808,035.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.