Home / 382,693,225.78-528,279,896.52-257,318,092.60

Finding the Fourth Proportional to 382,693,225.78, 528,279,896.52 and 257,318,092.60

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Solution

The fourth proportional to 382,693,225.78, 528,279,896.52 and 257,318,092.60 is: 355,208,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,693,225.78 : 528,279,896.52 = 257,318,092.60 : x
  2. Step 2: Convert to fraction form
    382,693,225.78/528,279,896.52 = 257,318,092.60/x
  3. Step 3: Cross multiply
    382,693,225.78x = 528,279,896.52 × 257,318,092.60
  4. Step 4: Simplify right side
    382,693,225.78x = 135,935,975,331,451,776
  5. Step 5: Solve for x
    x = 135,935,975,331,451,776/382,693,225.78
  6. Step 6: Final answer
    x = 355,208,731.63

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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.