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Finding the Fourth Proportional to 647,992,080.04, 894,051,877.96 and 369,431,965.48

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Solution

The fourth proportional to 647,992,080.04, 894,051,877.96 and 369,431,965.48 is: 509,715,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,992,080.04 : 894,051,877.96 = 369,431,965.48 : x
  2. Step 2: Convert to fraction form
    647,992,080.04/894,051,877.96 = 369,431,965.48/x
  3. Step 3: Cross multiply
    647,992,080.04x = 894,051,877.96 × 369,431,965.48
  4. Step 4: Simplify right side
    647,992,080.04x = 330,291,342,515,847,936
  5. Step 5: Solve for x
    x = 330,291,342,515,847,936/647,992,080.04
  6. Step 6: Final answer
    x = 509,715,091.73

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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.