Home / 80,409,101.11-120,309,284.07-47,637,264.26

Finding the Fourth Proportional to 80,409,101.11, 120,309,284.07 and 47,637,264.26

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Solution

The fourth proportional to 80,409,101.11, 120,309,284.07 and 47,637,264.26 is: 71,275,578.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409,101.11 : 120,309,284.07 = 47,637,264.26 : x
  2. Step 2: Convert to fraction form
    80,409,101.11/120,309,284.07 = 47,637,264.26/x
  3. Step 3: Cross multiply
    80,409,101.11x = 120,309,284.07 × 47,637,264.26
  4. Step 4: Simplify right side
    80,409,101.11x = 5,731,205,158,474,772
  5. Step 5: Solve for x
    x = 5,731,205,158,474,772/80,409,101.11
  6. Step 6: Final answer
    x = 71,275,578.01

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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.