Home / 47,941,878.70-71,904,944.84-20,640,821.40

Finding the Fourth Proportional to 47,941,878.70, 71,904,944.84 and 20,640,821.40

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Solution

The fourth proportional to 47,941,878.70, 71,904,944.84 and 20,640,821.40 is: 30,957,842.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,941,878.70 : 71,904,944.84 = 20,640,821.40 : x
  2. Step 2: Convert to fraction form
    47,941,878.70/71,904,944.84 = 20,640,821.40/x
  3. Step 3: Cross multiply
    47,941,878.70x = 71,904,944.84 × 20,640,821.40
  4. Step 4: Simplify right side
    47,941,878.70x = 1,484,177,124,219,291.50
  5. Step 5: Solve for x
    x = 1,484,177,124,219,291.50/47,941,878.70
  6. Step 6: Final answer
    x = 30,957,842.38

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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.