Home / 389,857,217.60-584,785,826.40-159,991,270.40

Finding the Fourth Proportional to 389,857,217.60, 584,785,826.40 and 159,991,270.40

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Solution

The fourth proportional to 389,857,217.60, 584,785,826.40 and 159,991,270.40 is: 239,986,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,857,217.60 : 584,785,826.40 = 159,991,270.40 : x
  2. Step 2: Convert to fraction form
    389,857,217.60/584,785,826.40 = 159,991,270.40/x
  3. Step 3: Cross multiply
    389,857,217.60x = 584,785,826.40 × 159,991,270.40
  4. Step 4: Simplify right side
    389,857,217.60x = 93,560,627,277,649,856
  5. Step 5: Solve for x
    x = 93,560,627,277,649,856/389,857,217.60
  6. Step 6: Final answer
    x = 239,986,905.60

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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.