Home / 78,315,699.36-117,222,000.48-41,832,865.92

Finding the Fourth Proportional to 78,315,699.36, 117,222,000.48 and 41,832,865.92

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Solution

The fourth proportional to 78,315,699.36, 117,222,000.48 and 41,832,865.92 is: 62,614,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,315,699.36 : 117,222,000.48 = 41,832,865.92 : x
  2. Step 2: Convert to fraction form
    78,315,699.36/117,222,000.48 = 41,832,865.92/x
  3. Step 3: Cross multiply
    78,315,699.36x = 117,222,000.48 × 41,832,865.92
  4. Step 4: Simplify right side
    78,315,699.36x = 4,903,732,228,954,016
  5. Step 5: Solve for x
    x = 4,903,732,228,954,016/78,315,699.36
  6. Step 6: Final answer
    x = 62,614,932.50

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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.