Home / 28,543,977.40-42,815,583.40-6,978,765.04

Finding the Fourth Proportional to 28,543,977.40, 42,815,583.40 and 6,978,765.04

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Solution

The fourth proportional to 28,543,977.40, 42,815,583.40 and 6,978,765.04 is: 10,468,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,977.40 : 42,815,583.40 = 6,978,765.04 : x
  2. Step 2: Convert to fraction form
    28,543,977.40/42,815,583.40 = 6,978,765.04/x
  3. Step 3: Cross multiply
    28,543,977.40x = 42,815,583.40 × 6,978,765.04
  4. Step 4: Simplify right side
    28,543,977.40x = 298,799,896,599,124.31
  5. Step 5: Solve for x
    x = 298,799,896,599,124.31/28,543,977.40
  6. Step 6: Final answer
    x = 10,468,053.99

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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.