Home / 13,779,265.82-19,014,150.89-7,978,439.08

Finding the Fourth Proportional to 13,779,265.82, 19,014,150.89 and 7,978,439.08

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Solution

The fourth proportional to 13,779,265.82, 19,014,150.89 and 7,978,439.08 is: 11,009,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,265.82 : 19,014,150.89 = 7,978,439.08 : x
  2. Step 2: Convert to fraction form
    13,779,265.82/19,014,150.89 = 7,978,439.08/x
  3. Step 3: Cross multiply
    13,779,265.82x = 19,014,150.89 × 7,978,439.08
  4. Step 4: Simplify right side
    13,779,265.82x = 151,703,244,398,829.84
  5. Step 5: Solve for x
    x = 151,703,244,398,829.84/13,779,265.82
  6. Step 6: Final answer
    x = 11,009,530.29

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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.