Home / 51,711,781.47-71,362,739.78-28,507,738.80

Finding the Fourth Proportional to 51,711,781.47, 71,362,739.78 and 28,507,738.80

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Solution

The fourth proportional to 51,711,781.47, 71,362,739.78 and 28,507,738.80 is: 39,340,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,711,781.47 : 71,362,739.78 = 28,507,738.80 : x
  2. Step 2: Convert to fraction form
    51,711,781.47/71,362,739.78 = 28,507,738.80/x
  3. Step 3: Cross multiply
    51,711,781.47x = 71,362,739.78 × 28,507,738.80
  4. Step 4: Simplify right side
    51,711,781.47x = 2,034,390,345,700,609.50
  5. Step 5: Solve for x
    x = 2,034,390,345,700,609.50/51,711,781.47
  6. Step 6: Final answer
    x = 39,340,944.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.