Home / 814,346,814.30-1,221,520,221.45-426,019,595.10

Finding the Fourth Proportional to 814,346,814.30, 1,221,520,221.45 and 426,019,595.10

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Solution

The fourth proportional to 814,346,814.30, 1,221,520,221.45 and 426,019,595.10 is: 639,029,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,346,814.30 : 1,221,520,221.45 = 426,019,595.10 : x
  2. Step 2: Convert to fraction form
    814,346,814.30/1,221,520,221.45 = 426,019,595.10/x
  3. Step 3: Cross multiply
    814,346,814.30x = 1,221,520,221.45 × 426,019,595.10
  4. Step 4: Simplify right side
    814,346,814.30x = 520,391,550,148,591,360
  5. Step 5: Solve for x
    x = 520,391,550,148,591,360/814,346,814.30
  6. Step 6: Final answer
    x = 639,029,392.65

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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.