Home / 521,489,433.40-782,234,150.10-157,983,789.40

Finding the Fourth Proportional to 521,489,433.40, 782,234,150.10 and 157,983,789.40

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Solution

The fourth proportional to 521,489,433.40, 782,234,150.10 and 157,983,789.40 is: 236,975,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,489,433.40 : 782,234,150.10 = 157,983,789.40 : x
  2. Step 2: Convert to fraction form
    521,489,433.40/782,234,150.10 = 157,983,789.40/x
  3. Step 3: Cross multiply
    521,489,433.40x = 782,234,150.10 × 157,983,789.40
  4. Step 4: Simplify right side
    521,489,433.40x = 123,580,315,230,886,400
  5. Step 5: Solve for x
    x = 123,580,315,230,886,400/521,489,433.40
  6. Step 6: Final answer
    x = 236,975,684.10

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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.