Home / 12,648,051.36-18,972,102.96-5,921,189.28

Finding the Fourth Proportional to 12,648,051.36, 18,972,102.96 and 5,921,189.28

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Solution

The fourth proportional to 12,648,051.36, 18,972,102.96 and 5,921,189.28 is: 8,881,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648,051.36 : 18,972,102.96 = 5,921,189.28 : x
  2. Step 2: Convert to fraction form
    12,648,051.36/18,972,102.96 = 5,921,189.28/x
  3. Step 3: Cross multiply
    12,648,051.36x = 18,972,102.96 × 5,921,189.28
  4. Step 4: Simplify right side
    12,648,051.36x = 112,337,412,665,808.28
  5. Step 5: Solve for x
    x = 112,337,412,665,808.28/12,648,051.36
  6. Step 6: Final answer
    x = 8,881,796.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.