Home / 384,912,220.80-577,368,331.20-345,945,129.60

Finding the Fourth Proportional to 384,912,220.80, 577,368,331.20 and 345,945,129.60

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Solution

The fourth proportional to 384,912,220.80, 577,368,331.20 and 345,945,129.60 is: 518,917,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,912,220.80 : 577,368,331.20 = 345,945,129.60 : x
  2. Step 2: Convert to fraction form
    384,912,220.80/577,368,331.20 = 345,945,129.60/x
  3. Step 3: Cross multiply
    384,912,220.80x = 577,368,331.20 × 345,945,129.60
  4. Step 4: Simplify right side
    384,912,220.80x = 199,737,762,163,919,744
  5. Step 5: Solve for x
    x = 199,737,762,163,919,744/384,912,220.80
  6. Step 6: Final answer
    x = 518,917,694.40

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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.