Home / 20,274,496.94-30,411,848.28-5,128,443.02

Finding the Fourth Proportional to 20,274,496.94, 30,411,848.28 and 5,128,443.02

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Solution

The fourth proportional to 20,274,496.94, 30,411,848.28 and 5,128,443.02 is: 7,692,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274,496.94 : 30,411,848.28 = 5,128,443.02 : x
  2. Step 2: Convert to fraction form
    20,274,496.94/30,411,848.28 = 5,128,443.02/x
  3. Step 3: Cross multiply
    20,274,496.94x = 30,411,848.28 × 5,128,443.02
  4. Step 4: Simplify right side
    20,274,496.94x = 155,965,431,036,865
  5. Step 5: Solve for x
    x = 155,965,431,036,865/20,274,496.94
  6. Step 6: Final answer
    x = 7,692,690.55

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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.