Home / 412,713,735.96-618,601,274.82-215,673,349.80

Finding the Fourth Proportional to 412,713,735.96, 618,601,274.82 and 215,673,349.80

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Solution

The fourth proportional to 412,713,735.96, 618,601,274.82 and 215,673,349.80 is: 323,264,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,713,735.96 : 618,601,274.82 = 215,673,349.80 : x
  2. Step 2: Convert to fraction form
    412,713,735.96/618,601,274.82 = 215,673,349.80/x
  3. Step 3: Cross multiply
    412,713,735.96x = 618,601,274.82 × 215,673,349.80
  4. Step 4: Simplify right side
    412,713,735.96x = 133,415,809,130,979,808
  5. Step 5: Solve for x
    x = 133,415,809,130,979,808/412,713,735.96
  6. Step 6: Final answer
    x = 323,264,765.64

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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.