Home / 18,628,785,601.20-27,943,178,401.80-15,322,797,428.40

Finding the Fourth Proportional to 18,628,785,601.20, 27,943,178,401.80 and 15,322,797,428.40

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Solution

The fourth proportional to 18,628,785,601.20, 27,943,178,401.80 and 15,322,797,428.40 is: 22,984,196,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628,785,601.20 : 27,943,178,401.80 = 15,322,797,428.40 : x
  2. Step 2: Convert to fraction form
    18,628,785,601.20/27,943,178,401.80 = 15,322,797,428.40/x
  3. Step 3: Cross multiply
    18,628,785,601.20x = 27,943,178,401.80 × 15,322,797,428.40
  4. Step 4: Simplify right side
    18,628,785,601.20x = 428,167,662,156,423,430,144
  5. Step 5: Solve for x
    x = 428,167,662,156,423,430,144/18,628,785,601.20
  6. Step 6: Final answer
    x = 22,984,196,142.60

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1.5x scale

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.