Home / 20,522,564.70-30,763,543.05-9,720,879.90

Finding the Fourth Proportional to 20,522,564.70, 30,763,543.05 and 9,720,879.90

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Solution

The fourth proportional to 20,522,564.70, 30,763,543.05 and 9,720,879.90 is: 14,571,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,564.70 : 30,763,543.05 = 9,720,879.90 : x
  2. Step 2: Convert to fraction form
    20,522,564.70/30,763,543.05 = 9,720,879.90/x
  3. Step 3: Cross multiply
    20,522,564.70x = 30,763,543.05 × 9,720,879.90
  4. Step 4: Simplify right side
    20,522,564.70x = 299,048,707,287,529.69
  5. Step 5: Solve for x
    x = 299,048,707,287,529.69/20,522,564.70
  6. Step 6: Final answer
    x = 14,571,702.50

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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.