Home / 399,388,942.26-551,146,475.22-223,178,385.30

Finding the Fourth Proportional to 399,388,942.26, 551,146,475.22 and 223,178,385.30

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Solution

The fourth proportional to 399,388,942.26, 551,146,475.22 and 223,178,385.30 is: 307,980,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,388,942.26 : 551,146,475.22 = 223,178,385.30 : x
  2. Step 2: Convert to fraction form
    399,388,942.26/551,146,475.22 = 223,178,385.30/x
  3. Step 3: Cross multiply
    399,388,942.26x = 551,146,475.22 × 223,178,385.30
  4. Step 4: Simplify right side
    399,388,942.26x = 123,003,980,403,386,080
  5. Step 5: Solve for x
    x = 123,003,980,403,386,080/399,388,942.26
  6. Step 6: Final answer
    x = 307,980,435.58

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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.