Home / 385,148,989.80-531,505,605.96-220,140,102.24

Finding the Fourth Proportional to 385,148,989.80, 531,505,605.96 and 220,140,102.24

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Solution

The fourth proportional to 385,148,989.80, 531,505,605.96 and 220,140,102.24 is: 303,793,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,148,989.80 : 531,505,605.96 = 220,140,102.24 : x
  2. Step 2: Convert to fraction form
    385,148,989.80/531,505,605.96 = 220,140,102.24/x
  3. Step 3: Cross multiply
    385,148,989.80x = 531,505,605.96 × 220,140,102.24
  4. Step 4: Simplify right side
    385,148,989.80x = 117,005,698,437,167,552
  5. Step 5: Solve for x
    x = 117,005,698,437,167,552/385,148,989.80
  6. Step 6: Final answer
    x = 303,793,341.11

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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.