Home / 385,156,062.72-531,375,888.96-253,068,157.44

Finding the Fourth Proportional to 385,156,062.72, 531,375,888.96 and 253,068,157.44

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Solution

The fourth proportional to 385,156,062.72, 531,375,888.96 and 253,068,157.44 is: 349,142,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,156,062.72 : 531,375,888.96 = 253,068,157.44 : x
  2. Step 2: Convert to fraction form
    385,156,062.72/531,375,888.96 = 253,068,157.44/x
  3. Step 3: Cross multiply
    385,156,062.72x = 531,375,888.96 × 253,068,157.44
  4. Step 4: Simplify right side
    385,156,062.72x = 134,474,317,127,149,232
  5. Step 5: Solve for x
    x = 134,474,317,127,149,232/385,156,062.72
  6. Step 6: Final answer
    x = 349,142,413.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.