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Finding the Fourth Proportional to 472,392,458.40, 708,588,687.60 and 453,260,582.40

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Solution

The fourth proportional to 472,392,458.40, 708,588,687.60 and 453,260,582.40 is: 679,890,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,458.40 : 708,588,687.60 = 453,260,582.40 : x
  2. Step 2: Convert to fraction form
    472,392,458.40/708,588,687.60 = 453,260,582.40/x
  3. Step 3: Cross multiply
    472,392,458.40x = 708,588,687.60 × 453,260,582.40
  4. Step 4: Simplify right side
    472,392,458.40x = 321,175,321,223,627,648
  5. Step 5: Solve for x
    x = 321,175,321,223,627,648/472,392,458.40
  6. Step 6: Final answer
    x = 679,890,873.60

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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.