Home / 15,311,364.09-21,129,670.96-8,435,846.15

Finding the Fourth Proportional to 15,311,364.09, 21,129,670.96 and 8,435,846.15

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Solution

The fourth proportional to 15,311,364.09, 21,129,670.96 and 8,435,846.15 is: 11,641,461.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311,364.09 : 21,129,670.96 = 8,435,846.15 : x
  2. Step 2: Convert to fraction form
    15,311,364.09/21,129,670.96 = 8,435,846.15/x
  3. Step 3: Cross multiply
    15,311,364.09x = 21,129,670.96 × 8,435,846.15
  4. Step 4: Simplify right side
    15,311,364.09x = 178,246,653,394,902.72
  5. Step 5: Solve for x
    x = 178,246,653,394,902.72/15,311,364.09
  6. Step 6: Final answer
    x = 11,641,461.36

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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.