Home / 30,827,676.13-42,542,178.32-18,437,769.32

Finding the Fourth Proportional to 30,827,676.13, 42,542,178.32 and 18,437,769.32

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Solution

The fourth proportional to 30,827,676.13, 42,542,178.32 and 18,437,769.32 is: 25,444,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827,676.13 : 42,542,178.32 = 18,437,769.32 : x
  2. Step 2: Convert to fraction form
    30,827,676.13/42,542,178.32 = 18,437,769.32/x
  3. Step 3: Cross multiply
    30,827,676.13x = 42,542,178.32 × 18,437,769.32
  4. Step 4: Simplify right side
    30,827,676.13x = 784,382,870,067,848.75
  5. Step 5: Solve for x
    x = 784,382,870,067,848.75/30,827,676.13
  6. Step 6: Final answer
    x = 25,444,112.84

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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.