Home / 818,903,809.80-1,228,355,714.70-359,738,785.80

Finding the Fourth Proportional to 818,903,809.80, 1,228,355,714.70 and 359,738,785.80

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Solution

The fourth proportional to 818,903,809.80, 1,228,355,714.70 and 359,738,785.80 is: 539,608,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,903,809.80 : 1,228,355,714.70 = 359,738,785.80 : x
  2. Step 2: Convert to fraction form
    818,903,809.80/1,228,355,714.70 = 359,738,785.80/x
  3. Step 3: Cross multiply
    818,903,809.80x = 1,228,355,714.70 × 359,738,785.80
  4. Step 4: Simplify right side
    818,903,809.80x = 441,887,193,336,669,248
  5. Step 5: Solve for x
    x = 441,887,193,336,669,248/818,903,809.80
  6. Step 6: Final answer
    x = 539,608,178.70

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Double scale
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Similar ratio
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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.