Home / 115,571,453.21-159,479,753.98-66,004,984.50

Finding the Fourth Proportional to 115,571,453.21, 159,479,753.98 and 66,004,984.50

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Solution

The fourth proportional to 115,571,453.21, 159,479,753.98 and 66,004,984.50 is: 91,081,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,571,453.21 : 159,479,753.98 = 66,004,984.50 : x
  2. Step 2: Convert to fraction form
    115,571,453.21/159,479,753.98 = 66,004,984.50/x
  3. Step 3: Cross multiply
    115,571,453.21x = 159,479,753.98 × 66,004,984.50
  4. Step 4: Simplify right side
    115,571,453.21x = 10,526,458,689,513,712
  5. Step 5: Solve for x
    x = 10,526,458,689,513,712/115,571,453.21
  6. Step 6: Final answer
    x = 91,081,823.38

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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.