Home / 13,779,251.82-19,014,131.57-7,978,425.08

Finding the Fourth Proportional to 13,779,251.82, 19,014,131.57 and 7,978,425.08

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Solution

The fourth proportional to 13,779,251.82, 19,014,131.57 and 7,978,425.08 is: 11,009,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,251.82 : 19,014,131.57 = 7,978,425.08 : x
  2. Step 2: Convert to fraction form
    13,779,251.82/19,014,131.57 = 7,978,425.08/x
  3. Step 3: Cross multiply
    13,779,251.82x = 19,014,131.57 × 7,978,425.08
  4. Step 4: Simplify right side
    13,779,251.82x = 151,702,824,057,545
  5. Step 5: Solve for x
    x = 151,702,824,057,545/13,779,251.82
  6. Step 6: Final answer
    x = 11,009,510.97

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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.