Home / 20,872,679.94-31,317,703.62-9,195,074.88

Finding the Fourth Proportional to 20,872,679.94, 31,317,703.62 and 9,195,074.88

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Solution

The fourth proportional to 20,872,679.94, 31,317,703.62 and 9,195,074.88 is: 13,796,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,679.94 : 31,317,703.62 = 9,195,074.88 : x
  2. Step 2: Convert to fraction form
    20,872,679.94/31,317,703.62 = 9,195,074.88/x
  3. Step 3: Cross multiply
    20,872,679.94x = 31,317,703.62 × 9,195,074.88
  4. Step 4: Simplify right side
    20,872,679.94x = 287,968,629,855,547.12
  5. Step 5: Solve for x
    x = 287,968,629,855,547.12/20,872,679.94
  6. Step 6: Final answer
    x = 13,796,437.77

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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.