Home / 194,982,469.69-292,473,686.78-85,807,640.69

Finding the Fourth Proportional to 194,982,469.69, 292,473,686.78 and 85,807,640.69

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Solution

The fourth proportional to 194,982,469.69, 292,473,686.78 and 85,807,640.69 is: 128,711,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,982,469.69 : 292,473,686.78 = 85,807,640.69 : x
  2. Step 2: Convert to fraction form
    194,982,469.69/292,473,686.78 = 85,807,640.69/x
  3. Step 3: Cross multiply
    194,982,469.69x = 292,473,686.78 × 85,807,640.69
  4. Step 4: Simplify right side
    194,982,469.69x = 25,096,477,026,497,840
  5. Step 5: Solve for x
    x = 25,096,477,026,497,840/194,982,469.69
  6. Step 6: Final answer
    x = 128,711,453.22

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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.