Home / 313,380,993.92-432,009,982.80-219,002,124.32

Finding the Fourth Proportional to 313,380,993.92, 432,009,982.80 and 219,002,124.32

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Solution

The fourth proportional to 313,380,993.92, 432,009,982.80 and 219,002,124.32 is: 301,904,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,380,993.92 : 432,009,982.80 = 219,002,124.32 : x
  2. Step 2: Convert to fraction form
    313,380,993.92/432,009,982.80 = 219,002,124.32/x
  3. Step 3: Cross multiply
    313,380,993.92x = 432,009,982.80 × 219,002,124.32
  4. Step 4: Simplify right side
    313,380,993.92x = 94,611,103,960,646,656
  5. Step 5: Solve for x
    x = 94,611,103,960,646,656/313,380,993.92
  6. Step 6: Final answer
    x = 301,904,409.64

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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.