Home / 86,629,170.21-129,856,316.64-54,303,773.15

Finding the Fourth Proportional to 86,629,170.21, 129,856,316.64 and 54,303,773.15

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Solution

The fourth proportional to 86,629,170.21, 129,856,316.64 and 54,303,773.15 is: 81,400,848.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,629,170.21 : 129,856,316.64 = 54,303,773.15 : x
  2. Step 2: Convert to fraction form
    86,629,170.21/129,856,316.64 = 54,303,773.15/x
  3. Step 3: Cross multiply
    86,629,170.21x = 129,856,316.64 × 54,303,773.15
  4. Step 4: Simplify right side
    86,629,170.21x = 7,051,687,961,237,772
  5. Step 5: Solve for x
    x = 7,051,687,961,237,772/86,629,170.21
  6. Step 6: Final answer
    x = 81,400,848.51

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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.