Home / 619,612,964.40-928,427,423.40-328,099,861.20

Finding the Fourth Proportional to 619,612,964.40, 928,427,423.40 and 328,099,861.20

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Solution

The fourth proportional to 619,612,964.40, 928,427,423.40 and 328,099,861.20 is: 491,624,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,612,964.40 : 928,427,423.40 = 328,099,861.20 : x
  2. Step 2: Convert to fraction form
    619,612,964.40/928,427,423.40 = 328,099,861.20/x
  3. Step 3: Cross multiply
    619,612,964.40x = 928,427,423.40 × 328,099,861.20
  4. Step 4: Simplify right side
    619,612,964.40x = 304,616,908,751,813,632
  5. Step 5: Solve for x
    x = 304,616,908,751,813,632/619,612,964.40
  6. Step 6: Final answer
    x = 491,624,491.83

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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.