Home / 20,274,498.94-30,411,851.28-5,128,445.02

Finding the Fourth Proportional to 20,274,498.94, 30,411,851.28 and 5,128,445.02

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Solution

The fourth proportional to 20,274,498.94, 30,411,851.28 and 5,128,445.02 is: 7,692,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274,498.94 : 30,411,851.28 = 5,128,445.02 : x
  2. Step 2: Convert to fraction form
    20,274,498.94/30,411,851.28 = 5,128,445.02/x
  3. Step 3: Cross multiply
    20,274,498.94x = 30,411,851.28 × 5,128,445.02
  4. Step 4: Simplify right side
    20,274,498.94x = 155,965,507,245,896.62
  5. Step 5: Solve for x
    x = 155,965,507,245,896.62/20,274,498.94
  6. Step 6: Final answer
    x = 7,692,693.55

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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.