Home / 643,882,635.30-965,949,924.15-275,416,875.30

Finding the Fourth Proportional to 643,882,635.30, 965,949,924.15 and 275,416,875.30

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Solution

The fourth proportional to 643,882,635.30, 965,949,924.15 and 275,416,875.30 is: 413,179,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,882,635.30 : 965,949,924.15 = 275,416,875.30 : x
  2. Step 2: Convert to fraction form
    643,882,635.30/965,949,924.15 = 275,416,875.30/x
  3. Step 3: Cross multiply
    643,882,635.30x = 965,949,924.15 × 275,416,875.30
  4. Step 4: Simplify right side
    643,882,635.30x = 266,038,909,805,665,024
  5. Step 5: Solve for x
    x = 266,038,909,805,665,024/643,882,635.30
  6. Step 6: Final answer
    x = 413,179,196.36

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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.