Home / 399,210,515.40-550,910,478.60-222,998,509.16

Finding the Fourth Proportional to 399,210,515.40, 550,910,478.60 and 222,998,509.16

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Solution

The fourth proportional to 399,210,515.40, 550,910,478.60 and 222,998,509.16 is: 307,737,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,210,515.40 : 550,910,478.60 = 222,998,509.16 : x
  2. Step 2: Convert to fraction form
    399,210,515.40/550,910,478.60 = 222,998,509.16/x
  3. Step 3: Cross multiply
    399,210,515.40x = 550,910,478.60 × 222,998,509.16
  4. Step 4: Simplify right side
    399,210,515.40x = 122,852,215,408,422,080
  5. Step 5: Solve for x
    x = 122,852,215,408,422,080/399,210,515.40
  6. Step 6: Final answer
    x = 307,737,924.40

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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.