Home / 15,321,522,722.16-21,143,691,806.28-8,280,992,354.16

Finding the Fourth Proportional to 15,321,522,722.16, 21,143,691,806.28 and 8,280,992,354.16

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Solution

The fourth proportional to 15,321,522,722.16, 21,143,691,806.28 and 8,280,992,354.16 is: 11,427,764,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,522,722.16 : 21,143,691,806.28 = 8,280,992,354.16 : x
  2. Step 2: Convert to fraction form
    15,321,522,722.16/21,143,691,806.28 = 8,280,992,354.16/x
  3. Step 3: Cross multiply
    15,321,522,722.16x = 21,143,691,806.28 × 8,280,992,354.16
  4. Step 4: Simplify right side
    15,321,522,722.16x = 175,090,750,186,520,117,248
  5. Step 5: Solve for x
    x = 175,090,750,186,520,117,248/15,321,522,722.16
  6. Step 6: Final answer
    x = 11,427,764,286.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.