Home / 43,138,219.60-64,707,329.40-20,463,403.60

Finding the Fourth Proportional to 43,138,219.60, 64,707,329.40 and 20,463,403.60

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Solution

The fourth proportional to 43,138,219.60, 64,707,329.40 and 20,463,403.60 is: 30,695,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138,219.60 : 64,707,329.40 = 20,463,403.60 : x
  2. Step 2: Convert to fraction form
    43,138,219.60/64,707,329.40 = 20,463,403.60/x
  3. Step 3: Cross multiply
    43,138,219.60x = 64,707,329.40 × 20,463,403.60
  4. Step 4: Simplify right side
    43,138,219.60x = 1,324,132,197,390,346
  5. Step 5: Solve for x
    x = 1,324,132,197,390,346/43,138,219.60
  6. Step 6: Final answer
    x = 30,695,105.40

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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.