Home / 13,558,091.53-18,715,891.86-9,153,783.51

Finding the Fourth Proportional to 13,558,091.53, 18,715,891.86 and 9,153,783.51

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Solution

The fourth proportional to 13,558,091.53, 18,715,891.86 and 9,153,783.51 is: 12,636,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,091.53 : 18,715,891.86 = 9,153,783.51 : x
  2. Step 2: Convert to fraction form
    13,558,091.53/18,715,891.86 = 9,153,783.51/x
  3. Step 3: Cross multiply
    13,558,091.53x = 18,715,891.86 × 9,153,783.51
  4. Step 4: Simplify right side
    13,558,091.53x = 171,321,222,283,011.22
  5. Step 5: Solve for x
    x = 171,321,222,283,011.22/13,558,091.53
  6. Step 6: Final answer
    x = 12,636,086.86

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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.