Home / 28,341,940.88-42,519,657.20-9,172,697.96

Finding the Fourth Proportional to 28,341,940.88, 42,519,657.20 and 9,172,697.96

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Solution

The fourth proportional to 28,341,940.88, 42,519,657.20 and 9,172,697.96 is: 13,761,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,940.88 : 42,519,657.20 = 9,172,697.96 : x
  2. Step 2: Convert to fraction form
    28,341,940.88/42,519,657.20 = 9,172,697.96/x
  3. Step 3: Cross multiply
    28,341,940.88x = 42,519,657.20 × 9,172,697.96
  4. Step 4: Simplify right side
    28,341,940.88x = 390,019,972,599,877.56
  5. Step 5: Solve for x
    x = 390,019,972,599,877.56/28,341,940.88
  6. Step 6: Final answer
    x = 13,761,230.20

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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.