Home / 472,393,313.70-708,589,970.55-426,476,811.30

Finding the Fourth Proportional to 472,393,313.70, 708,589,970.55 and 426,476,811.30

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Solution

The fourth proportional to 472,393,313.70, 708,589,970.55 and 426,476,811.30 is: 639,715,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,313.70 : 708,589,970.55 = 426,476,811.30 : x
  2. Step 2: Convert to fraction form
    472,393,313.70/708,589,970.55 = 426,476,811.30/x
  3. Step 3: Cross multiply
    472,393,313.70x = 708,589,970.55 × 426,476,811.30
  4. Step 4: Simplify right side
    472,393,313.70x = 302,197,191,159,324,864
  5. Step 5: Solve for x
    x = 302,197,191,159,324,864/472,393,313.70
  6. Step 6: Final answer
    x = 639,715,216.95

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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.