Home / 439,930,389.20-660,273,497.40-194,664,462.80

Finding the Fourth Proportional to 439,930,389.20, 660,273,497.40 and 194,664,462.80

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Solution

The fourth proportional to 439,930,389.20, 660,273,497.40 and 194,664,462.80 is: 292,163,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,930,389.20 : 660,273,497.40 = 194,664,462.80 : x
  2. Step 2: Convert to fraction form
    439,930,389.20/660,273,497.40 = 194,664,462.80/x
  3. Step 3: Cross multiply
    439,930,389.20x = 660,273,497.40 × 194,664,462.80
  4. Step 4: Simplify right side
    439,930,389.20x = 128,531,785,672,448,192
  5. Step 5: Solve for x
    x = 128,531,785,672,448,192/439,930,389.20
  6. Step 6: Final answer
    x = 292,163,916.90

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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.