Home / 28,711,135.70-43,066,637.84-12,305,782.66

Finding the Fourth Proportional to 28,711,135.70, 43,066,637.84 and 12,305,782.66

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Solution

The fourth proportional to 28,711,135.70, 43,066,637.84 and 12,305,782.66 is: 18,458,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711,135.70 : 43,066,637.84 = 12,305,782.66 : x
  2. Step 2: Convert to fraction form
    28,711,135.70/43,066,637.84 = 12,305,782.66/x
  3. Step 3: Cross multiply
    28,711,135.70x = 43,066,637.84 × 12,305,782.66
  4. Step 4: Simplify right side
    28,711,135.70x = 529,968,685,155,971.88
  5. Step 5: Solve for x
    x = 529,968,685,155,971.88/28,711,135.70
  6. Step 6: Final answer
    x = 18,458,645.83

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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.