Home / 78,496,352.04-117,735,255.66-20,993,080.20

Finding the Fourth Proportional to 78,496,352.04, 117,735,255.66 and 20,993,080.20

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Solution

The fourth proportional to 78,496,352.04, 117,735,255.66 and 20,993,080.20 is: 31,487,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,496,352.04 : 117,735,255.66 = 20,993,080.20 : x
  2. Step 2: Convert to fraction form
    78,496,352.04/117,735,255.66 = 20,993,080.20/x
  3. Step 3: Cross multiply
    78,496,352.04x = 117,735,255.66 × 20,993,080.20
  4. Step 4: Simplify right side
    78,496,352.04x = 2,471,625,664,437,884
  5. Step 5: Solve for x
    x = 2,471,625,664,437,884/78,496,352.04
  6. Step 6: Final answer
    x = 31,487,140.49

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1.5x scale

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.