Home / 579,456,856.40-869,185,284.60-395,790,846.80

Finding the Fourth Proportional to 579,456,856.40, 869,185,284.60 and 395,790,846.80

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Solution

The fourth proportional to 579,456,856.40, 869,185,284.60 and 395,790,846.80 is: 593,686,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,456,856.40 : 869,185,284.60 = 395,790,846.80 : x
  2. Step 2: Convert to fraction form
    579,456,856.40/869,185,284.60 = 395,790,846.80/x
  3. Step 3: Cross multiply
    579,456,856.40x = 869,185,284.60 × 395,790,846.80
  4. Step 4: Simplify right side
    579,456,856.40x = 344,015,579,817,932,992
  5. Step 5: Solve for x
    x = 344,015,579,817,932,992/579,456,856.40
  6. Step 6: Final answer
    x = 593,686,270.20

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Double scale
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Similar ratio
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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.