Home / 120,114,888.36-180,107,507.52-54,500,220.81

Finding the Fourth Proportional to 120,114,888.36, 180,107,507.52 and 54,500,220.81

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Solution

The fourth proportional to 120,114,888.36, 180,107,507.52 and 54,500,220.81 is: 81,720,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,114,888.36 : 180,107,507.52 = 54,500,220.81 : x
  2. Step 2: Convert to fraction form
    120,114,888.36/180,107,507.52 = 54,500,220.81/x
  3. Step 3: Cross multiply
    120,114,888.36x = 180,107,507.52 × 54,500,220.81
  4. Step 4: Simplify right side
    120,114,888.36x = 9,815,898,929,378,736
  5. Step 5: Solve for x
    x = 9,815,898,929,378,736/120,114,888.36
  6. Step 6: Final answer
    x = 81,720,917.89

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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.