Home / 215,963,740.80-323,945,611.20-199,335,542.40

Finding the Fourth Proportional to 215,963,740.80, 323,945,611.20 and 199,335,542.40

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Solution

The fourth proportional to 215,963,740.80, 323,945,611.20 and 199,335,542.40 is: 299,003,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,963,740.80 : 323,945,611.20 = 199,335,542.40 : x
  2. Step 2: Convert to fraction form
    215,963,740.80/323,945,611.20 = 199,335,542.40/x
  3. Step 3: Cross multiply
    215,963,740.80x = 323,945,611.20 × 199,335,542.40
  4. Step 4: Simplify right side
    215,963,740.80x = 64,573,874,116,651,512
  5. Step 5: Solve for x
    x = 64,573,874,116,651,512/215,963,740.80
  6. Step 6: Final answer
    x = 299,003,313.60

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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.