Home / 619,612,964.90-928,427,424.15-328,099,861.70

Finding the Fourth Proportional to 619,612,964.90, 928,427,424.15 and 328,099,861.70

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Solution

The fourth proportional to 619,612,964.90, 928,427,424.15 and 328,099,861.70 is: 491,624,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,612,964.90 : 928,427,424.15 = 328,099,861.70 : x
  2. Step 2: Convert to fraction form
    619,612,964.90/928,427,424.15 = 328,099,861.70/x
  3. Step 3: Cross multiply
    619,612,964.90x = 928,427,424.15 × 328,099,861.70
  4. Step 4: Simplify right side
    619,612,964.90x = 304,616,909,462,102,208
  5. Step 5: Solve for x
    x = 304,616,909,462,102,208/619,612,964.90
  6. Step 6: Final answer
    x = 491,624,492.58

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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.