Home / 639,945,639.63-959,918,461.74-179,883,808.95

Finding the Fourth Proportional to 639,945,639.63, 959,918,461.74 and 179,883,808.95

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Solution

The fourth proportional to 639,945,639.63, 959,918,461.74 and 179,883,808.95 is: 269,825,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,945,639.63 : 959,918,461.74 = 179,883,808.95 : x
  2. Step 2: Convert to fraction form
    639,945,639.63/959,918,461.74 = 179,883,808.95/x
  3. Step 3: Cross multiply
    639,945,639.63x = 959,918,461.74 × 179,883,808.95
  4. Step 4: Simplify right side
    639,945,639.63x = 172,673,789,179,216,032
  5. Step 5: Solve for x
    x = 172,673,789,179,216,032/639,945,639.63
  6. Step 6: Final answer
    x = 269,825,714.07

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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.