Home / 75,718,930.88-113,597,548.32-21,131,506.88

Finding the Fourth Proportional to 75,718,930.88, 113,597,548.32 and 21,131,506.88

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Solution

The fourth proportional to 75,718,930.88, 113,597,548.32 and 21,131,506.88 is: 31,702,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,718,930.88 : 113,597,548.32 = 21,131,506.88 : x
  2. Step 2: Convert to fraction form
    75,718,930.88/113,597,548.32 = 21,131,506.88/x
  3. Step 3: Cross multiply
    75,718,930.88x = 113,597,548.32 × 21,131,506.88
  4. Step 4: Simplify right side
    75,718,930.88x = 2,400,487,373,875,212
  5. Step 5: Solve for x
    x = 2,400,487,373,875,212/75,718,930.88
  6. Step 6: Final answer
    x = 31,702,605.23

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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.