Home / 1,122,912,144.10-1,684,368,216.15-395,974,339.30

Finding the Fourth Proportional to 1,122,912,144.10, 1,684,368,216.15 and 395,974,339.30

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Solution

The fourth proportional to 1,122,912,144.10, 1,684,368,216.15 and 395,974,339.30 is: 593,961,508.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,912,144.10 : 1,684,368,216.15 = 395,974,339.30 : x
  2. Step 2: Convert to fraction form
    1,122,912,144.10/1,684,368,216.15 = 395,974,339.30/x
  3. Step 3: Cross multiply
    1,122,912,144.10x = 1,684,368,216.15 × 395,974,339.30
  4. Step 4: Simplify right side
    1,122,912,144.10x = 666,966,591,527,915,904
  5. Step 5: Solve for x
    x = 666,966,591,527,915,904/1,122,912,144.10
  6. Step 6: Final answer
    x = 593,961,508.95

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Half scale
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Double scale
Find fourth proportional to 1,122,912,145.10, 1,684,368,217.65 and 395,974,340.30
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.