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Finding the Fourth Proportional to 355,318,760.20, 532,978,140.30 and 274,597,659.40

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Solution

The fourth proportional to 355,318,760.20, 532,978,140.30 and 274,597,659.40 is: 411,896,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,318,760.20 : 532,978,140.30 = 274,597,659.40 : x
  2. Step 2: Convert to fraction form
    355,318,760.20/532,978,140.30 = 274,597,659.40/x
  3. Step 3: Cross multiply
    355,318,760.20x = 532,978,140.30 × 274,597,659.40
  4. Step 4: Simplify right side
    355,318,760.20x = 146,354,549,837,744,800
  5. Step 5: Solve for x
    x = 146,354,549,837,744,800/355,318,760.20
  6. Step 6: Final answer
    x = 411,896,489.10

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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.