Home / 20,747,894.63-31,123,336.64-7,968,399.35

Finding the Fourth Proportional to 20,747,894.63, 31,123,336.64 and 7,968,399.35

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Solution

The fourth proportional to 20,747,894.63, 31,123,336.64 and 7,968,399.35 is: 11,953,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,894.63 : 31,123,336.64 = 7,968,399.35 : x
  2. Step 2: Convert to fraction form
    20,747,894.63/31,123,336.64 = 7,968,399.35/x
  3. Step 3: Cross multiply
    20,747,894.63x = 31,123,336.64 × 7,968,399.35
  4. Step 4: Simplify right side
    20,747,894.63x = 248,003,175,256,548.50
  5. Step 5: Solve for x
    x = 248,003,175,256,548.50/20,747,894.63
  6. Step 6: Final answer
    x = 11,953,173.07

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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.