Home / 215,564,187-323,373,171.38-84,389,518.40

Finding the Fourth Proportional to 215,564,187, 323,373,171.38 and 84,389,518.40

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Solution

The fourth proportional to 215,564,187, 323,373,171.38 and 84,389,518.40 is: 126,594,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,564,187 : 323,373,171.38 = 84,389,518.40 : x
  2. Step 2: Convert to fraction form
    215,564,187/323,373,171.38 = 84,389,518.40/x
  3. Step 3: Cross multiply
    215,564,187x = 323,373,171.38 × 84,389,518.40
  4. Step 4: Simplify right side
    215,564,187x = 27,289,306,194,200,048
  5. Step 5: Solve for x
    x = 27,289,306,194,200,048/215,564,187
  6. Step 6: Final answer
    x = 126,594,804.89

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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.