Home / 101,380,513-139,907,858.88-57,334,098.50

Finding the Fourth Proportional to 101,380,513, 139,907,858.88 and 57,334,098.50

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Solution

The fourth proportional to 101,380,513, 139,907,858.88 and 57,334,098.50 is: 79,122,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,380,513 : 139,907,858.88 = 57,334,098.50 : x
  2. Step 2: Convert to fraction form
    101,380,513/139,907,858.88 = 57,334,098.50/x
  3. Step 3: Cross multiply
    101,380,513x = 139,907,858.88 × 57,334,098.50
  4. Step 4: Simplify right side
    101,380,513x = 8,021,490,961,950,019
  5. Step 5: Solve for x
    x = 8,021,490,961,950,019/101,380,513
  6. Step 6: Final answer
    x = 79,122,611.68

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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.