Home / 199,665,516.36-299,299,869.90-138,953,696.52

Finding the Fourth Proportional to 199,665,516.36, 299,299,869.90 and 138,953,696.52

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Solution

The fourth proportional to 199,665,516.36, 299,299,869.90 and 138,953,696.52 is: 208,292,468.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,665,516.36 : 299,299,869.90 = 138,953,696.52 : x
  2. Step 2: Convert to fraction form
    199,665,516.36/299,299,869.90 = 138,953,696.52/x
  3. Step 3: Cross multiply
    199,665,516.36x = 299,299,869.90 × 138,953,696.52
  4. Step 4: Simplify right side
    199,665,516.36x = 41,588,823,290,560,080
  5. Step 5: Solve for x
    x = 41,588,823,290,560,080/199,665,516.36
  6. Step 6: Final answer
    x = 208,292,468.57

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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.