Home / 85,869,162.20-128,478,719.82-50,873,072.36

Finding the Fourth Proportional to 85,869,162.20, 128,478,719.82 and 50,873,072.36

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Solution

The fourth proportional to 85,869,162.20, 128,478,719.82 and 50,873,072.36 is: 76,117,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869,162.20 : 128,478,719.82 = 50,873,072.36 : x
  2. Step 2: Convert to fraction form
    85,869,162.20/128,478,719.82 = 50,873,072.36/x
  3. Step 3: Cross multiply
    85,869,162.20x = 128,478,719.82 × 50,873,072.36
  4. Step 4: Simplify right side
    85,869,162.20x = 6,536,107,210,123,026
  5. Step 5: Solve for x
    x = 6,536,107,210,123,026/85,869,162.20
  6. Step 6: Final answer
    x = 76,117,048.81

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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.