Home / 25,382,990.12-34,994,694.67-20,173,394.12

Finding the Fourth Proportional to 25,382,990.12, 34,994,694.67 and 20,173,394.12

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Solution

The fourth proportional to 25,382,990.12, 34,994,694.67 and 20,173,394.12 is: 27,812,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,382,990.12 : 34,994,694.67 = 20,173,394.12 : x
  2. Step 2: Convert to fraction form
    25,382,990.12/34,994,694.67 = 20,173,394.12/x
  3. Step 3: Cross multiply
    25,382,990.12x = 34,994,694.67 × 20,173,394.12
  4. Step 4: Simplify right side
    25,382,990.12x = 705,961,767,461,566.25
  5. Step 5: Solve for x
    x = 705,961,767,461,566.25/25,382,990.12
  6. Step 6: Final answer
    x = 27,812,395.79

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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.