Home / 20,809,219.20-31,213,828.80-5,663,150.70

Finding the Fourth Proportional to 20,809,219.20, 31,213,828.80 and 5,663,150.70

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Solution

The fourth proportional to 20,809,219.20, 31,213,828.80 and 5,663,150.70 is: 8,494,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,219.20 : 31,213,828.80 = 5,663,150.70 : x
  2. Step 2: Convert to fraction form
    20,809,219.20/31,213,828.80 = 5,663,150.70/x
  3. Step 3: Cross multiply
    20,809,219.20x = 31,213,828.80 × 5,663,150.70
  4. Step 4: Simplify right side
    20,809,219.20x = 176,768,616,418,400.16
  5. Step 5: Solve for x
    x = 176,768,616,418,400.16/20,809,219.20
  6. Step 6: Final answer
    x = 8,494,726.05

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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.