Home / 28,546,881.36-39,394,739.52-15,494,145.12

Finding the Fourth Proportional to 28,546,881.36, 39,394,739.52 and 15,494,145.12

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Solution

The fourth proportional to 28,546,881.36, 39,394,739.52 and 15,494,145.12 is: 21,381,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546,881.36 : 39,394,739.52 = 15,494,145.12 : x
  2. Step 2: Convert to fraction form
    28,546,881.36/39,394,739.52 = 15,494,145.12/x
  3. Step 3: Cross multiply
    28,546,881.36x = 39,394,739.52 × 15,494,145.12
  4. Step 4: Simplify right side
    28,546,881.36x = 610,387,811,087,479.12
  5. Step 5: Solve for x
    x = 610,387,811,087,479.12/28,546,881.36
  6. Step 6: Final answer
    x = 21,381,943.74

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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.