Home / 12,928,453.19-17,842,068.75-7,127,224.28

Finding the Fourth Proportional to 12,928,453.19, 17,842,068.75 and 7,127,224.28

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Solution

The fourth proportional to 12,928,453.19, 17,842,068.75 and 7,127,224.28 is: 9,836,012.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,453.19 : 17,842,068.75 = 7,127,224.28 : x
  2. Step 2: Convert to fraction form
    12,928,453.19/17,842,068.75 = 7,127,224.28/x
  3. Step 3: Cross multiply
    12,928,453.19x = 17,842,068.75 × 7,127,224.28
  4. Step 4: Simplify right side
    12,928,453.19x = 127,164,425,511,218.91
  5. Step 5: Solve for x
    x = 127,164,425,511,218.91/12,928,453.19
  6. Step 6: Final answer
    x = 9,836,012.37

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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.