Home / 429,022,826.55-643,732,156.04-195,924,996.36

Finding the Fourth Proportional to 429,022,826.55, 643,732,156.04 and 195,924,996.36

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Solution

The fourth proportional to 429,022,826.55, 643,732,156.04 and 195,924,996.36 is: 293,977,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,022,826.55 : 643,732,156.04 = 195,924,996.36 : x
  2. Step 2: Convert to fraction form
    429,022,826.55/643,732,156.04 = 195,924,996.36/x
  3. Step 3: Cross multiply
    429,022,826.55x = 643,732,156.04 × 195,924,996.36
  4. Step 4: Simplify right side
    429,022,826.55x = 126,123,220,327,972,336
  5. Step 5: Solve for x
    x = 126,123,220,327,972,336/429,022,826.55
  6. Step 6: Final answer
    x = 293,977,878.39

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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.