Home / 812,416,623,176.50-1,218,958,977,694.60-358,896,172,212.18

Finding the Fourth Proportional to 812,416,623,176.50, 1,218,958,977,694.60 and 358,896,172,212.18

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Solution

The fourth proportional to 812,416,623,176.50, 1,218,958,977,694.60 and 358,896,172,212.18 is: 538,491,826,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,416,623,176.50 : 1,218,958,977,694.60 = 358,896,172,212.18 : x
  2. Step 2: Convert to fraction form
    812,416,623,176.50/1,218,958,977,694.60 = 358,896,172,212.18/x
  3. Step 3: Cross multiply
    812,416,623,176.50x = 1,218,958,977,694.60 × 358,896,172,212.18
  4. Step 4: Simplify right side
    812,416,623,176.50x = 437,479,711,178,264,051,449,856
  5. Step 5: Solve for x
    x = 437,479,711,178,264,051,449,856/812,416,623,176.50
  6. Step 6: Final answer
    x = 538,491,826,358.43

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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.