Home / 43,124,914.20-64,655,465.40-20,379,239.40

Finding the Fourth Proportional to 43,124,914.20, 64,655,465.40 and 20,379,239.40

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Solution

The fourth proportional to 43,124,914.20, 64,655,465.40 and 20,379,239.40 is: 30,553,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,124,914.20 : 64,655,465.40 = 20,379,239.40 : x
  2. Step 2: Convert to fraction form
    43,124,914.20/64,655,465.40 = 20,379,239.40/x
  3. Step 3: Cross multiply
    43,124,914.20x = 64,655,465.40 × 20,379,239.40
  4. Step 4: Simplify right side
    43,124,914.20x = 1,317,629,207,905,016.75
  5. Step 5: Solve for x
    x = 1,317,629,207,905,016.75/43,124,914.20
  6. Step 6: Final answer
    x = 30,553,781.55

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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.