Home / 85,869,160.20-128,478,716.82-50,873,070.36

Finding the Fourth Proportional to 85,869,160.20, 128,478,716.82 and 50,873,070.36

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Solution

The fourth proportional to 85,869,160.20, 128,478,716.82 and 50,873,070.36 is: 76,117,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869,160.20 : 128,478,716.82 = 50,873,070.36 : x
  2. Step 2: Convert to fraction form
    85,869,160.20/128,478,716.82 = 50,873,070.36/x
  3. Step 3: Cross multiply
    85,869,160.20x = 128,478,716.82 × 50,873,070.36
  4. Step 4: Simplify right side
    85,869,160.20x = 6,536,106,800,546,375
  5. Step 5: Solve for x
    x = 6,536,106,800,546,375/85,869,160.20
  6. Step 6: Final answer
    x = 76,117,045.81

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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.