Home / 643,522,656.80-965,283,985.20-158,848,464.80

Finding the Fourth Proportional to 643,522,656.80, 965,283,985.20 and 158,848,464.80

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Solution

The fourth proportional to 643,522,656.80, 965,283,985.20 and 158,848,464.80 is: 238,272,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,522,656.80 : 965,283,985.20 = 158,848,464.80 : x
  2. Step 2: Convert to fraction form
    643,522,656.80/965,283,985.20 = 158,848,464.80/x
  3. Step 3: Cross multiply
    643,522,656.80x = 965,283,985.20 × 158,848,464.80
  4. Step 4: Simplify right side
    643,522,656.80x = 153,333,879,145,045,952
  5. Step 5: Solve for x
    x = 153,333,879,145,045,952/643,522,656.80
  6. Step 6: Final answer
    x = 238,272,697.20

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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.