Home / 74,769,942.80-112,070,933.40-31,631,805.20

Finding the Fourth Proportional to 74,769,942.80, 112,070,933.40 and 31,631,805.20

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Solution

The fourth proportional to 74,769,942.80, 112,070,933.40 and 31,631,805.20 is: 47,412,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,769,942.80 : 112,070,933.40 = 31,631,805.20 : x
  2. Step 2: Convert to fraction form
    74,769,942.80/112,070,933.40 = 31,631,805.20/x
  3. Step 3: Cross multiply
    74,769,942.80x = 112,070,933.40 × 31,631,805.20
  4. Step 4: Simplify right side
    74,769,942.80x = 3,545,005,933,890,974
  5. Step 5: Solve for x
    x = 3,545,005,933,890,974/74,769,942.80
  6. Step 6: Final answer
    x = 47,412,179.29

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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.