Home / 511,499,205.00-705,867,575.25-285,435,818.39

Finding the Fourth Proportional to 511,499,205.00, 705,867,575.25 and 285,435,818.39

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Solution

The fourth proportional to 511,499,205.00, 705,867,575.25 and 285,435,818.39 is: 393,900,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,499,205.00 : 705,867,575.25 = 285,435,818.39 : x
  2. Step 2: Convert to fraction form
    511,499,205.00/705,867,575.25 = 285,435,818.39/x
  3. Step 3: Cross multiply
    511,499,205.00x = 705,867,575.25 × 285,435,818.39
  4. Step 4: Simplify right side
    511,499,205.00x = 201,479,889,011,492,128
  5. Step 5: Solve for x
    x = 201,479,889,011,492,128/511,499,205.00
  6. Step 6: Final answer
    x = 393,900,688.49

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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.