Home / 511,499,206.37-705,867,577.14-285,435,819.77

Finding the Fourth Proportional to 511,499,206.37, 705,867,577.14 and 285,435,819.77

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Solution

The fourth proportional to 511,499,206.37, 705,867,577.14 and 285,435,819.77 is: 393,900,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,499,206.37 : 705,867,577.14 = 285,435,819.77 : x
  2. Step 2: Convert to fraction form
    511,499,206.37/705,867,577.14 = 285,435,819.77/x
  3. Step 3: Cross multiply
    511,499,206.37x = 705,867,577.14 × 285,435,819.77
  4. Step 4: Simplify right side
    511,499,206.37x = 201,479,890,526,490,272
  5. Step 5: Solve for x
    x = 201,479,890,526,490,272/511,499,206.37
  6. Step 6: Final answer
    x = 393,900,690.40

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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.