Home / 928,858,654.20-1,281,825,152.04-511,170,939.51

Finding the Fourth Proportional to 928,858,654.20, 1,281,825,152.04 and 511,170,939.51

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Solution

The fourth proportional to 928,858,654.20, 1,281,825,152.04 and 511,170,939.51 is: 705,416,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,858,654.20 : 1,281,825,152.04 = 511,170,939.51 : x
  2. Step 2: Convert to fraction form
    928,858,654.20/1,281,825,152.04 = 511,170,939.51/x
  3. Step 3: Cross multiply
    928,858,654.20x = 1,281,825,152.04 × 511,170,939.51
  4. Step 4: Simplify right side
    928,858,654.20x = 655,231,767,255,835,392
  5. Step 5: Solve for x
    x = 655,231,767,255,835,392/928,858,654.20
  6. Step 6: Final answer
    x = 705,416,011.68

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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.