Home / 20,761,338.20-31,142,007.30-19,565,595.95

Finding the Fourth Proportional to 20,761,338.20, 31,142,007.30 and 19,565,595.95

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Solution

The fourth proportional to 20,761,338.20, 31,142,007.30 and 19,565,595.95 is: 29,348,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,338.20 : 31,142,007.30 = 19,565,595.95 : x
  2. Step 2: Convert to fraction form
    20,761,338.20/31,142,007.30 = 19,565,595.95/x
  3. Step 3: Cross multiply
    20,761,338.20x = 31,142,007.30 × 19,565,595.95
  4. Step 4: Simplify right side
    20,761,338.20x = 609,311,931,903,750.38
  5. Step 5: Solve for x
    x = 609,311,931,903,750.38/20,761,338.20
  6. Step 6: Final answer
    x = 29,348,393.93

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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.