Home / 643,313,555.40-964,970,333.10-536,175,049.80

Finding the Fourth Proportional to 643,313,555.40, 964,970,333.10 and 536,175,049.80

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Solution

The fourth proportional to 643,313,555.40, 964,970,333.10 and 536,175,049.80 is: 804,262,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,313,555.40 : 964,970,333.10 = 536,175,049.80 : x
  2. Step 2: Convert to fraction form
    643,313,555.40/964,970,333.10 = 536,175,049.80/x
  3. Step 3: Cross multiply
    643,313,555.40x = 964,970,333.10 × 536,175,049.80
  4. Step 4: Simplify right side
    643,313,555.40x = 517,393,016,405,415,104
  5. Step 5: Solve for x
    x = 517,393,016,405,415,104/643,313,555.40
  6. Step 6: Final answer
    x = 804,262,574.70

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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.