Home / 77,391,839.89-116,051,887.09-28,856,661.96

Finding the Fourth Proportional to 77,391,839.89, 116,051,887.09 and 28,856,661.96

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Solution

The fourth proportional to 77,391,839.89, 116,051,887.09 and 28,856,661.96 is: 43,271,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391,839.89 : 116,051,887.09 = 28,856,661.96 : x
  2. Step 2: Convert to fraction form
    77,391,839.89/116,051,887.09 = 28,856,661.96/x
  3. Step 3: Cross multiply
    77,391,839.89x = 116,051,887.09 × 28,856,661.96
  4. Step 4: Simplify right side
    77,391,839.89x = 3,348,870,075,576,218.50
  5. Step 5: Solve for x
    x = 3,348,870,075,576,218.50/77,391,839.89
  6. Step 6: Final answer
    x = 43,271,617.27

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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.