Home / 74,682,970,320.78-103,062,809,557.11-40,388,676,877.68

Finding the Fourth Proportional to 74,682,970,320.78, 103,062,809,557.11 and 40,388,676,877.68

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Solution

The fourth proportional to 74,682,970,320.78, 103,062,809,557.11 and 40,388,676,877.68 is: 55,736,542,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,682,970,320.78 : 103,062,809,557.11 = 40,388,676,877.68 : x
  2. Step 2: Convert to fraction form
    74,682,970,320.78/103,062,809,557.11 = 40,388,676,877.68/x
  3. Step 3: Cross multiply
    74,682,970,320.78x = 103,062,809,557.11 × 40,388,676,877.68
  4. Step 4: Simplify right side
    74,682,970,320.78x = 4,162,570,513,307,676,966,912
  5. Step 5: Solve for x
    x = 4,162,570,513,307,676,966,912/74,682,970,320.78
  6. Step 6: Final answer
    x = 55,736,542,017.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.