Home / 472,395,912.30-708,593,868.45-213,619,574.70

Finding the Fourth Proportional to 472,395,912.30, 708,593,868.45 and 213,619,574.70

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Solution

The fourth proportional to 472,395,912.30, 708,593,868.45 and 213,619,574.70 is: 320,429,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,912.30 : 708,593,868.45 = 213,619,574.70 : x
  2. Step 2: Convert to fraction form
    472,395,912.30/708,593,868.45 = 213,619,574.70/x
  3. Step 3: Cross multiply
    472,395,912.30x = 708,593,868.45 × 213,619,574.70
  4. Step 4: Simplify right side
    472,395,912.30x = 151,369,520,813,316,736
  5. Step 5: Solve for x
    x = 151,369,520,813,316,736/472,395,912.30
  6. Step 6: Final answer
    x = 320,429,362.05

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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.