Home / 86,576,232.69-129,865,189.79-69,261,418.98

Finding the Fourth Proportional to 86,576,232.69, 129,865,189.79 and 69,261,418.98

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Solution

The fourth proportional to 86,576,232.69, 129,865,189.79 and 69,261,418.98 is: 103,892,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,576,232.69 : 129,865,189.79 = 69,261,418.98 : x
  2. Step 2: Convert to fraction form
    86,576,232.69/129,865,189.79 = 69,261,418.98/x
  3. Step 3: Cross multiply
    86,576,232.69x = 129,865,189.79 × 69,261,418.98
  4. Step 4: Simplify right side
    86,576,232.69x = 8,994,647,320,962,409
  5. Step 5: Solve for x
    x = 8,994,647,320,962,409/86,576,232.69
  6. Step 6: Final answer
    x = 103,892,801.08

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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.