Home / 663,552,025.70-995,328,038.55-639,365,555.30

Finding the Fourth Proportional to 663,552,025.70, 995,328,038.55 and 639,365,555.30

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Solution

The fourth proportional to 663,552,025.70, 995,328,038.55 and 639,365,555.30 is: 959,048,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,025.70 : 995,328,038.55 = 639,365,555.30 : x
  2. Step 2: Convert to fraction form
    663,552,025.70/995,328,038.55 = 639,365,555.30/x
  3. Step 3: Cross multiply
    663,552,025.70x = 995,328,038.55 × 639,365,555.30
  4. Step 4: Simplify right side
    663,552,025.70x = 636,378,464,073,180,416
  5. Step 5: Solve for x
    x = 636,378,464,073,180,416/663,552,025.70
  6. Step 6: Final answer
    x = 959,048,332.95

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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.