Home / 28,331,840.40-42,493,006.73-7,863,639.52

Finding the Fourth Proportional to 28,331,840.40, 42,493,006.73 and 7,863,639.52

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Solution

The fourth proportional to 28,331,840.40, 42,493,006.73 and 7,863,639.52 is: 11,794,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,840.40 : 42,493,006.73 = 7,863,639.52 : x
  2. Step 2: Convert to fraction form
    28,331,840.40/42,493,006.73 = 7,863,639.52/x
  3. Step 3: Cross multiply
    28,331,840.40x = 42,493,006.73 × 7,863,639.52
  4. Step 4: Simplify right side
    28,331,840.40x = 334,149,686,793,870.75
  5. Step 5: Solve for x
    x = 334,149,686,793,870.75/28,331,840.40
  6. Step 6: Final answer
    x = 11,794,139.81

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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.