Home / 28,085,989.60-42,128,984.40-17,268,212.80

Finding the Fourth Proportional to 28,085,989.60, 42,128,984.40 and 17,268,212.80

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Solution

The fourth proportional to 28,085,989.60, 42,128,984.40 and 17,268,212.80 is: 25,902,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,989.60 : 42,128,984.40 = 17,268,212.80 : x
  2. Step 2: Convert to fraction form
    28,085,989.60/42,128,984.40 = 17,268,212.80/x
  3. Step 3: Cross multiply
    28,085,989.60x = 42,128,984.40 × 17,268,212.80
  4. Step 4: Simplify right side
    28,085,989.60x = 727,492,267,667,080.38
  5. Step 5: Solve for x
    x = 727,492,267,667,080.38/28,085,989.60
  6. Step 6: Final answer
    x = 25,902,319.20

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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.