Home / 78,389,688.42-117,576,934.68-23,802,753.78

Finding the Fourth Proportional to 78,389,688.42, 117,576,934.68 and 23,802,753.78

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Solution

The fourth proportional to 78,389,688.42, 117,576,934.68 and 23,802,753.78 is: 35,701,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,688.42 : 117,576,934.68 = 23,802,753.78 : x
  2. Step 2: Convert to fraction form
    78,389,688.42/117,576,934.68 = 23,802,753.78/x
  3. Step 3: Cross multiply
    78,389,688.42x = 117,576,934.68 × 23,802,753.78
  4. Step 4: Simplify right side
    78,389,688.42x = 2,798,654,826,395,183.50
  5. Step 5: Solve for x
    x = 2,798,654,826,395,183.50/78,389,688.42
  6. Step 6: Final answer
    x = 35,701,823.58

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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.