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Finding the Fourth Proportional to 472,392,912.60, 708,589,368.90 and 434,979,466.20

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Solution

The fourth proportional to 472,392,912.60, 708,589,368.90 and 434,979,466.20 is: 652,469,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,912.60 : 708,589,368.90 = 434,979,466.20 : x
  2. Step 2: Convert to fraction form
    472,392,912.60/708,589,368.90 = 434,979,466.20/x
  3. Step 3: Cross multiply
    472,392,912.60x = 708,589,368.90 × 434,979,466.20
  4. Step 4: Simplify right side
    472,392,912.60x = 308,221,825,439,116,864
  5. Step 5: Solve for x
    x = 308,221,825,439,116,864/472,392,912.60
  6. Step 6: Final answer
    x = 652,469,199.30

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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.