Home / 683,285,890.40-1,024,829,302.80-198,561,154.40

Finding the Fourth Proportional to 683,285,890.40, 1,024,829,302.80 and 198,561,154.40

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Solution

The fourth proportional to 683,285,890.40, 1,024,829,302.80 and 198,561,154.40 is: 297,812,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,285,890.40 : 1,024,829,302.80 = 198,561,154.40 : x
  2. Step 2: Convert to fraction form
    683,285,890.40/1,024,829,302.80 = 198,561,154.40/x
  3. Step 3: Cross multiply
    683,285,890.40x = 1,024,829,302.80 × 198,561,154.40
  4. Step 4: Simplify right side
    683,285,890.40x = 203,491,289,426,915,136
  5. Step 5: Solve for x
    x = 203,491,289,426,915,136/683,285,890.40
  6. Step 6: Final answer
    x = 297,812,807.62

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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.