Home / 20,518,285.10-30,785,905.91-8,997,791.18

Finding the Fourth Proportional to 20,518,285.10, 30,785,905.91 and 8,997,791.18

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Solution

The fourth proportional to 20,518,285.10, 30,785,905.91 and 8,997,791.18 is: 13,500,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518,285.10 : 30,785,905.91 = 8,997,791.18 : x
  2. Step 2: Convert to fraction form
    20,518,285.10/30,785,905.91 = 8,997,791.18/x
  3. Step 3: Cross multiply
    20,518,285.10x = 30,785,905.91 × 8,997,791.18
  4. Step 4: Simplify right side
    20,518,285.10x = 277,005,152,533,872.84
  5. Step 5: Solve for x
    x = 277,005,152,533,872.84/20,518,285.10
  6. Step 6: Final answer
    x = 13,500,404.70

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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.