Home / 579,456,692.40-869,185,038.60-395,790,682.80

Finding the Fourth Proportional to 579,456,692.40, 869,185,038.60 and 395,790,682.80

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Solution

The fourth proportional to 579,456,692.40, 869,185,038.60 and 395,790,682.80 is: 593,686,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,456,692.40 : 869,185,038.60 = 395,790,682.80 : x
  2. Step 2: Convert to fraction form
    579,456,692.40/869,185,038.60 = 395,790,682.80/x
  3. Step 3: Cross multiply
    579,456,692.40x = 869,185,038.60 × 395,790,682.80
  4. Step 4: Simplify right side
    579,456,692.40x = 344,015,339,907,038,400
  5. Step 5: Solve for x
    x = 344,015,339,907,038,400/579,456,692.40
  6. Step 6: Final answer
    x = 593,686,024.20

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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.