Home / 79,231,347.70-118,847,021.55-54,572,485.30

Finding the Fourth Proportional to 79,231,347.70, 118,847,021.55 and 54,572,485.30

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Solution

The fourth proportional to 79,231,347.70, 118,847,021.55 and 54,572,485.30 is: 81,858,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231,347.70 : 118,847,021.55 = 54,572,485.30 : x
  2. Step 2: Convert to fraction form
    79,231,347.70/118,847,021.55 = 54,572,485.30/x
  3. Step 3: Cross multiply
    79,231,347.70x = 118,847,021.55 × 54,572,485.30
  4. Step 4: Simplify right side
    79,231,347.70x = 6,485,777,336,486,158
  5. Step 5: Solve for x
    x = 6,485,777,336,486,158/79,231,347.70
  6. Step 6: Final answer
    x = 81,858,727.95

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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.