Home / 79,115,815.20-118,673,722.80-48,504,813.60

Finding the Fourth Proportional to 79,115,815.20, 118,673,722.80 and 48,504,813.60

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Solution

The fourth proportional to 79,115,815.20, 118,673,722.80 and 48,504,813.60 is: 72,757,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115,815.20 : 118,673,722.80 = 48,504,813.60 : x
  2. Step 2: Convert to fraction form
    79,115,815.20/118,673,722.80 = 48,504,813.60/x
  3. Step 3: Cross multiply
    79,115,815.20x = 118,673,722.80 × 48,504,813.60
  4. Step 4: Simplify right side
    79,115,815.20x = 5,756,246,803,632,070
  5. Step 5: Solve for x
    x = 5,756,246,803,632,070/79,115,815.20
  6. Step 6: Final answer
    x = 72,757,220.40

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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.