Home / 472,393,321.30-708,589,981.95-442,160,233.30

Finding the Fourth Proportional to 472,393,321.30, 708,589,981.95 and 442,160,233.30

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Solution

The fourth proportional to 472,393,321.30, 708,589,981.95 and 442,160,233.30 is: 663,240,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,321.30 : 708,589,981.95 = 442,160,233.30 : x
  2. Step 2: Convert to fraction form
    472,393,321.30/708,589,981.95 = 442,160,233.30/x
  3. Step 3: Cross multiply
    472,393,321.30x = 708,589,981.95 × 442,160,233.30
  4. Step 4: Simplify right side
    472,393,321.30x = 313,310,311,733,054,848
  5. Step 5: Solve for x
    x = 313,310,311,733,054,848/472,393,321.30
  6. Step 6: Final answer
    x = 663,240,349.95

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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.