Home / 20,788,012-31,181,493.12-5,641,549.84

Finding the Fourth Proportional to 20,788,012, 31,181,493.12 and 5,641,549.84

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Solution

The fourth proportional to 20,788,012, 31,181,493.12 and 5,641,549.84 is: 8,462,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788,012 : 31,181,493.12 = 5,641,549.84 : x
  2. Step 2: Convert to fraction form
    20,788,012/31,181,493.12 = 5,641,549.84/x
  3. Step 3: Cross multiply
    20,788,012x = 31,181,493.12 × 5,641,549.84
  4. Step 4: Simplify right side
    20,788,012x = 175,911,947,522,097.09
  5. Step 5: Solve for x
    x = 175,911,947,522,097.09/20,788,012
  6. Step 6: Final answer
    x = 8,462,182.32

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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.