Home / 30,828,187.68-42,542,892.54-16,890,037.26

Finding the Fourth Proportional to 30,828,187.68, 42,542,892.54 and 16,890,037.26

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Solution

The fourth proportional to 30,828,187.68, 42,542,892.54 and 16,890,037.26 is: 23,308,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828,187.68 : 42,542,892.54 = 16,890,037.26 : x
  2. Step 2: Convert to fraction form
    30,828,187.68/42,542,892.54 = 16,890,037.26/x
  3. Step 3: Cross multiply
    30,828,187.68x = 42,542,892.54 × 16,890,037.26
  4. Step 4: Simplify right side
    30,828,187.68x = 718,551,040,148,776.12
  5. Step 5: Solve for x
    x = 718,551,040,148,776.12/30,828,187.68
  6. Step 6: Final answer
    x = 23,308,247.88

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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.