Home / 78,801,844.60-117,883,902.30-69,235,906.60

Finding the Fourth Proportional to 78,801,844.60, 117,883,902.30 and 69,235,906.60

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Solution

The fourth proportional to 78,801,844.60, 117,883,902.30 and 69,235,906.60 is: 103,573,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,844.60 : 117,883,902.30 = 69,235,906.60 : x
  2. Step 2: Convert to fraction form
    78,801,844.60/117,883,902.30 = 69,235,906.60/x
  3. Step 3: Cross multiply
    78,801,844.60x = 117,883,902.30 × 69,235,906.60
  4. Step 4: Simplify right side
    78,801,844.60x = 8,161,798,849,286,324
  5. Step 5: Solve for x
    x = 8,161,798,849,286,324/78,801,844.60
  6. Step 6: Final answer
    x = 103,573,703.01

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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.