Home / 200,063,961.72-299,786,033.58-138,772,280.70

Finding the Fourth Proportional to 200,063,961.72, 299,786,033.58 and 138,772,280.70

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Solution

The fourth proportional to 200,063,961.72, 299,786,033.58 and 138,772,280.70 is: 207,943,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,063,961.72 : 299,786,033.58 = 138,772,280.70 : x
  2. Step 2: Convert to fraction form
    200,063,961.72/299,786,033.58 = 138,772,280.70/x
  3. Step 3: Cross multiply
    200,063,961.72x = 299,786,033.58 × 138,772,280.70
  4. Step 4: Simplify right side
    200,063,961.72x = 41,601,991,601,903,384
  5. Step 5: Solve for x
    x = 41,601,991,601,903,384/200,063,961.72
  6. Step 6: Final answer
    x = 207,943,455.90

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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.