Home / 78,424,195.20-117,528,674.90-49,618,764.38

Finding the Fourth Proportional to 78,424,195.20, 117,528,674.90 and 49,618,764.38

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Solution

The fourth proportional to 78,424,195.20, 117,528,674.90 and 49,618,764.38 is: 74,360,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,424,195.20 : 117,528,674.90 = 49,618,764.38 : x
  2. Step 2: Convert to fraction form
    78,424,195.20/117,528,674.90 = 49,618,764.38/x
  3. Step 3: Cross multiply
    78,424,195.20x = 117,528,674.90 × 49,618,764.38
  4. Step 4: Simplify right side
    78,424,195.20x = 5,831,627,627,756,721
  5. Step 5: Solve for x
    x = 5,831,627,627,756,721/78,424,195.20
  6. Step 6: Final answer
    x = 74,360,057.03

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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.