Home / 30,619,294.80-42,255,167.24-16,868,165.20

Finding the Fourth Proportional to 30,619,294.80, 42,255,167.24 and 16,868,165.20

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Solution

The fourth proportional to 30,619,294.80, 42,255,167.24 and 16,868,165.20 is: 23,278,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619,294.80 : 42,255,167.24 = 16,868,165.20 : x
  2. Step 2: Convert to fraction form
    30,619,294.80/42,255,167.24 = 16,868,165.20/x
  3. Step 3: Cross multiply
    30,619,294.80x = 42,255,167.24 × 16,868,165.20
  4. Step 4: Simplify right side
    30,619,294.80x = 712,767,141,557,948
  5. Step 5: Solve for x
    x = 712,767,141,557,948/30,619,294.80
  6. Step 6: Final answer
    x = 23,278,365.69

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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.