Home / 643,116,575.70-964,674,863.55-398,228,562.90

Finding the Fourth Proportional to 643,116,575.70, 964,674,863.55 and 398,228,562.90

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Solution

The fourth proportional to 643,116,575.70, 964,674,863.55 and 398,228,562.90 is: 597,342,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,116,575.70 : 964,674,863.55 = 398,228,562.90 : x
  2. Step 2: Convert to fraction form
    643,116,575.70/964,674,863.55 = 398,228,562.90/x
  3. Step 3: Cross multiply
    643,116,575.70x = 964,674,863.55 × 398,228,562.90
  4. Step 4: Simplify right side
    643,116,575.70x = 384,161,084,577,270,080
  5. Step 5: Solve for x
    x = 384,161,084,577,270,080/643,116,575.70
  6. Step 6: Final answer
    x = 597,342,844.35

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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.