Home / 20,513,881.96-30,769,967.58-5,367,478.12

Finding the Fourth Proportional to 20,513,881.96, 30,769,967.58 and 5,367,478.12

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Solution

The fourth proportional to 20,513,881.96, 30,769,967.58 and 5,367,478.12 is: 8,050,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513,881.96 : 30,769,967.58 = 5,367,478.12 : x
  2. Step 2: Convert to fraction form
    20,513,881.96/30,769,967.58 = 5,367,478.12/x
  3. Step 3: Cross multiply
    20,513,881.96x = 30,769,967.58 × 5,367,478.12
  4. Step 4: Simplify right side
    20,513,881.96x = 165,157,127,738,759.34
  5. Step 5: Solve for x
    x = 165,157,127,738,759.34/20,513,881.96
  6. Step 6: Final answer
    x = 8,050,993.37

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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.