Home / 28,338,657.20-42,513,234.60-9,170,039.60

Finding the Fourth Proportional to 28,338,657.20, 42,513,234.60 and 9,170,039.60

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Solution

The fourth proportional to 28,338,657.20, 42,513,234.60 and 9,170,039.60 is: 13,756,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338,657.20 : 42,513,234.60 = 9,170,039.60 : x
  2. Step 2: Convert to fraction form
    28,338,657.20/42,513,234.60 = 9,170,039.60/x
  3. Step 3: Cross multiply
    28,338,657.20x = 42,513,234.60 × 9,170,039.60
  4. Step 4: Simplify right side
    28,338,657.20x = 389,848,044,806,090.19
  5. Step 5: Solve for x
    x = 389,848,044,806,090.19/28,338,657.20
  6. Step 6: Final answer
    x = 13,756,757.85

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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.