Home / 651,933,736.31-899,902,571.42-387,615,098.77

Finding the Fourth Proportional to 651,933,736.31, 899,902,571.42 and 387,615,098.77

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Solution

The fourth proportional to 651,933,736.31, 899,902,571.42 and 387,615,098.77 is: 535,047,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,933,736.31 : 899,902,571.42 = 387,615,098.77 : x
  2. Step 2: Convert to fraction form
    651,933,736.31/899,902,571.42 = 387,615,098.77/x
  3. Step 3: Cross multiply
    651,933,736.31x = 899,902,571.42 × 387,615,098.77
  4. Step 4: Simplify right side
    651,933,736.31x = 348,815,824,103,059,520
  5. Step 5: Solve for x
    x = 348,815,824,103,059,520/651,933,736.31
  6. Step 6: Final answer
    x = 535,047,972.94

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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.