Home / 443,232,003.80-664,848,005.70-213,082,621.40

Finding the Fourth Proportional to 443,232,003.80, 664,848,005.70 and 213,082,621.40

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Solution

The fourth proportional to 443,232,003.80, 664,848,005.70 and 213,082,621.40 is: 319,623,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,003.80 : 664,848,005.70 = 213,082,621.40 : x
  2. Step 2: Convert to fraction form
    443,232,003.80/664,848,005.70 = 213,082,621.40/x
  3. Step 3: Cross multiply
    443,232,003.80x = 664,848,005.70 × 213,082,621.40
  4. Step 4: Simplify right side
    443,232,003.80x = 141,667,555,887,118,160
  5. Step 5: Solve for x
    x = 141,667,555,887,118,160/443,232,003.80
  6. Step 6: Final answer
    x = 319,623,932.10

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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.