Home / 15,210,137-20,989,989.06-8,771,609

Finding the Fourth Proportional to 15,210,137, 20,989,989.06 and 8,771,609

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Solution

The fourth proportional to 15,210,137, 20,989,989.06 and 8,771,609 is: 12,104,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,137 : 20,989,989.06 = 8,771,609 : x
  2. Step 2: Convert to fraction form
    15,210,137/20,989,989.06 = 8,771,609/x
  3. Step 3: Cross multiply
    15,210,137x = 20,989,989.06 × 8,771,609
  4. Step 4: Simplify right side
    15,210,137x = 184,115,976,948,597.53
  5. Step 5: Solve for x
    x = 184,115,976,948,597.53/15,210,137
  6. Step 6: Final answer
    x = 12,104,820.42

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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.