Home / 86,346,271.35-129,505,220.08-31,002,649.56

Finding the Fourth Proportional to 86,346,271.35, 129,505,220.08 and 31,002,649.56

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Solution

The fourth proportional to 86,346,271.35, 129,505,220.08 and 31,002,649.56 is: 46,498,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,346,271.35 : 129,505,220.08 = 31,002,649.56 : x
  2. Step 2: Convert to fraction form
    86,346,271.35/129,505,220.08 = 31,002,649.56/x
  3. Step 3: Cross multiply
    86,346,271.35x = 129,505,220.08 × 31,002,649.56
  4. Step 4: Simplify right side
    86,346,271.35x = 4,015,004,954,253,408.50
  5. Step 5: Solve for x
    x = 4,015,004,954,253,408.50/86,346,271.35
  6. Step 6: Final answer
    x = 46,498,880.51

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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.