Home / 351,371,940.90-484,610,543.42-308,894,677.64

Finding the Fourth Proportional to 351,371,940.90, 484,610,543.42 and 308,894,677.64

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Solution

The fourth proportional to 351,371,940.90, 484,610,543.42 and 308,894,677.64 is: 426,026,099.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,371,940.90 : 484,610,543.42 = 308,894,677.64 : x
  2. Step 2: Convert to fraction form
    351,371,940.90/484,610,543.42 = 308,894,677.64/x
  3. Step 3: Cross multiply
    351,371,940.90x = 484,610,543.42 × 308,894,677.64
  4. Step 4: Simplify right side
    351,371,940.90x = 149,693,617,588,515,904
  5. Step 5: Solve for x
    x = 149,693,617,588,515,904/351,371,940.90
  6. Step 6: Final answer
    x = 426,026,099.88

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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.