Home / 385,148,982.80-531,505,596.30-220,140,095.24

Finding the Fourth Proportional to 385,148,982.80, 531,505,596.30 and 220,140,095.24

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Solution

The fourth proportional to 385,148,982.80, 531,505,596.30 and 220,140,095.24 is: 303,793,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,148,982.80 : 531,505,596.30 = 220,140,095.24 : x
  2. Step 2: Convert to fraction form
    385,148,982.80/531,505,596.30 = 220,140,095.24/x
  3. Step 3: Cross multiply
    385,148,982.80x = 531,505,596.30 × 220,140,095.24
  4. Step 4: Simplify right side
    385,148,982.80x = 117,005,692,590,074,992
  5. Step 5: Solve for x
    x = 117,005,692,590,074,992/385,148,982.80
  6. Step 6: Final answer
    x = 303,793,331.45

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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.