Home / 20,838,499.80-31,257,749.70-5,692,431.30

Finding the Fourth Proportional to 20,838,499.80, 31,257,749.70 and 5,692,431.30

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Solution

The fourth proportional to 20,838,499.80, 31,257,749.70 and 5,692,431.30 is: 8,538,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,499.80 : 31,257,749.70 = 5,692,431.30 : x
  2. Step 2: Convert to fraction form
    20,838,499.80/31,257,749.70 = 5,692,431.30/x
  3. Step 3: Cross multiply
    20,838,499.80x = 31,257,749.70 × 5,692,431.30
  4. Step 4: Simplify right side
    20,838,499.80x = 177,932,592,759,845.59
  5. Step 5: Solve for x
    x = 177,932,592,759,845.59/20,838,499.80
  6. Step 6: Final answer
    x = 8,538,646.95

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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.