Home / 472,392,028.80-708,588,043.20-442,158,940.80

Finding the Fourth Proportional to 472,392,028.80, 708,588,043.20 and 442,158,940.80

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Solution

The fourth proportional to 472,392,028.80, 708,588,043.20 and 442,158,940.80 is: 663,238,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,028.80 : 708,588,043.20 = 442,158,940.80 : x
  2. Step 2: Convert to fraction form
    472,392,028.80/708,588,043.20 = 442,158,940.80/x
  3. Step 3: Cross multiply
    472,392,028.80x = 708,588,043.20 × 442,158,940.80
  4. Step 4: Simplify right side
    472,392,028.80x = 313,308,538,644,856,704
  5. Step 5: Solve for x
    x = 313,308,538,644,856,704/472,392,028.80
  6. Step 6: Final answer
    x = 663,238,411.20

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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.