Home / 469,422,079.21-647,869,834.79-281,257,804.09

Finding the Fourth Proportional to 469,422,079.21, 647,869,834.79 and 281,257,804.09

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Solution

The fourth proportional to 469,422,079.21, 647,869,834.79 and 281,257,804.09 is: 388,176,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,422,079.21 : 647,869,834.79 = 281,257,804.09 : x
  2. Step 2: Convert to fraction form
    469,422,079.21/647,869,834.79 = 281,257,804.09/x
  3. Step 3: Cross multiply
    469,422,079.21x = 647,869,834.79 × 281,257,804.09
  4. Step 4: Simplify right side
    469,422,079.21x = 182,218,447,069,186,464
  5. Step 5: Solve for x
    x = 182,218,447,069,186,464/469,422,079.21
  6. Step 6: Final answer
    x = 388,176,132.18

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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.