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Finding the Fourth Proportional to 553,753,999.20, 830,630,998.80 and 230,595,880.80

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Solution

The fourth proportional to 553,753,999.20, 830,630,998.80 and 230,595,880.80 is: 345,893,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,753,999.20 : 830,630,998.80 = 230,595,880.80 : x
  2. Step 2: Convert to fraction form
    553,753,999.20/830,630,998.80 = 230,595,880.80/x
  3. Step 3: Cross multiply
    553,753,999.20x = 830,630,998.80 × 230,595,880.80
  4. Step 4: Simplify right side
    553,753,999.20x = 191,540,086,788,069,728
  5. Step 5: Solve for x
    x = 191,540,086,788,069,728/553,753,999.20
  6. Step 6: Final answer
    x = 345,893,821.20

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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.