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Finding the Fourth Proportional to 18,920,344,518.30, 28,380,516,777.45 and 18,920,344,518.30

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Solution

The fourth proportional to 18,920,344,518.30, 28,380,516,777.45 and 18,920,344,518.30 is: 28,380,516,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,344,518.30 : 28,380,516,777.45 = 18,920,344,518.30 : x
  2. Step 2: Convert to fraction form
    18,920,344,518.30/28,380,516,777.45 = 18,920,344,518.30/x
  3. Step 3: Cross multiply
    18,920,344,518.30x = 28,380,516,777.45 × 18,920,344,518.30
  4. Step 4: Simplify right side
    18,920,344,518.30x = 536,969,155,036,747,268,096
  5. Step 5: Solve for x
    x = 536,969,155,036,747,268,096/18,920,344,518.30
  6. Step 6: Final answer
    x = 28,380,516,777.45

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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.