Home / 643,272,644.35-962,474,026.32-381,097,949.32

Finding the Fourth Proportional to 643,272,644.35, 962,474,026.32 and 381,097,949.32

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Solution

The fourth proportional to 643,272,644.35, 962,474,026.32 and 381,097,949.32 is: 570,204,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,272,644.35 : 962,474,026.32 = 381,097,949.32 : x
  2. Step 2: Convert to fraction form
    643,272,644.35/962,474,026.32 = 381,097,949.32/x
  3. Step 3: Cross multiply
    643,272,644.35x = 962,474,026.32 × 381,097,949.32
  4. Step 4: Simplify right side
    643,272,644.35x = 366,796,877,704,315,712
  5. Step 5: Solve for x
    x = 366,796,877,704,315,712/643,272,644.35
  6. Step 6: Final answer
    x = 570,204,377.45

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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.