Home / 20,838,666.30-31,257,999.45-5,692,597.80

Finding the Fourth Proportional to 20,838,666.30, 31,257,999.45 and 5,692,597.80

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Solution

The fourth proportional to 20,838,666.30, 31,257,999.45 and 5,692,597.80 is: 8,538,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,666.30 : 31,257,999.45 = 5,692,597.80 : x
  2. Step 2: Convert to fraction form
    20,838,666.30/31,257,999.45 = 5,692,597.80/x
  3. Step 3: Cross multiply
    20,838,666.30x = 31,257,999.45 × 5,692,597.80
  4. Step 4: Simplify right side
    20,838,666.30x = 177,939,218,901,471.19
  5. Step 5: Solve for x
    x = 177,939,218,901,471.19/20,838,666.30
  6. Step 6: Final answer
    x = 8,538,896.70

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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.