Home / 28,772,564.80-43,087,988.40-13,608,781.60

Finding the Fourth Proportional to 28,772,564.80, 43,087,988.40 and 13,608,781.60

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Solution

The fourth proportional to 28,772,564.80, 43,087,988.40 and 13,608,781.60 is: 20,379,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,564.80 : 43,087,988.40 = 13,608,781.60 : x
  2. Step 2: Convert to fraction form
    28,772,564.80/43,087,988.40 = 13,608,781.60/x
  3. Step 3: Cross multiply
    28,772,564.80x = 43,087,988.40 × 13,608,781.60
  4. Step 4: Simplify right side
    28,772,564.80x = 586,375,023,718,933.38
  5. Step 5: Solve for x
    x = 586,375,023,718,933.38/28,772,564.80
  6. Step 6: Final answer
    x = 20,379,657.77

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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.