Home / 201,851,131.66-278,554,518.78-109,031,640.46

Finding the Fourth Proportional to 201,851,131.66, 278,554,518.78 and 109,031,640.46

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Solution

The fourth proportional to 201,851,131.66, 278,554,518.78 and 109,031,640.46 is: 150,463,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,851,131.66 : 278,554,518.78 = 109,031,640.46 : x
  2. Step 2: Convert to fraction form
    201,851,131.66/278,554,518.78 = 109,031,640.46/x
  3. Step 3: Cross multiply
    201,851,131.66x = 278,554,518.78 × 109,031,640.46
  4. Step 4: Simplify right side
    201,851,131.66x = 30,371,256,140,129,272
  5. Step 5: Solve for x
    x = 30,371,256,140,129,272/201,851,131.66
  6. Step 6: Final answer
    x = 150,463,640.66

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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.