Home / 18,972,317.89-28,458,473.40-10,343,674.47

Finding the Fourth Proportional to 18,972,317.89, 28,458,473.40 and 10,343,674.47

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Solution

The fourth proportional to 18,972,317.89, 28,458,473.40 and 10,343,674.47 is: 15,515,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972,317.89 : 28,458,473.40 = 10,343,674.47 : x
  2. Step 2: Convert to fraction form
    18,972,317.89/28,458,473.40 = 10,343,674.47/x
  3. Step 3: Cross multiply
    18,972,317.89x = 28,458,473.40 × 10,343,674.47
  4. Step 4: Simplify right side
    18,972,317.89x = 294,365,184,711,035.75
  5. Step 5: Solve for x
    x = 294,365,184,711,035.75/18,972,317.89
  6. Step 6: Final answer
    x = 15,515,509.83

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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.