Home / 399,362,670.33-551,141,774.20-223,154,943.09

Finding the Fourth Proportional to 399,362,670.33, 551,141,774.20 and 223,154,943.09

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Solution

The fourth proportional to 399,362,670.33, 551,141,774.20 and 223,154,943.09 is: 307,965,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,362,670.33 : 551,141,774.20 = 223,154,943.09 : x
  2. Step 2: Convert to fraction form
    399,362,670.33/551,141,774.20 = 223,154,943.09/x
  3. Step 3: Cross multiply
    399,362,670.33x = 551,141,774.20 × 223,154,943.09
  4. Step 4: Simplify right side
    399,362,670.33x = 122,990,011,256,122,640
  5. Step 5: Solve for x
    x = 122,990,011,256,122,640/399,362,670.33
  6. Step 6: Final answer
    x = 307,965,717.36

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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.