Home / 13,324,539.83-18,387,991.64-7,818,008.36

Finding the Fourth Proportional to 13,324,539.83, 18,387,991.64 and 7,818,008.36

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Solution

The fourth proportional to 13,324,539.83, 18,387,991.64 and 7,818,008.36 is: 10,788,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324,539.83 : 18,387,991.64 = 7,818,008.36 : x
  2. Step 2: Convert to fraction form
    13,324,539.83/18,387,991.64 = 7,818,008.36/x
  3. Step 3: Cross multiply
    13,324,539.83x = 18,387,991.64 × 7,818,008.36
  4. Step 4: Simplify right side
    13,324,539.83x = 143,757,472,292,735.16
  5. Step 5: Solve for x
    x = 143,757,472,292,735.16/13,324,539.83
  6. Step 6: Final answer
    x = 10,788,925.86

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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.