Home / 435,455,999.70-653,183,999.55-391,114,137.30

Finding the Fourth Proportional to 435,455,999.70, 653,183,999.55 and 391,114,137.30

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Solution

The fourth proportional to 435,455,999.70, 653,183,999.55 and 391,114,137.30 is: 586,671,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,455,999.70 : 653,183,999.55 = 391,114,137.30 : x
  2. Step 2: Convert to fraction form
    435,455,999.70/653,183,999.55 = 391,114,137.30/x
  3. Step 3: Cross multiply
    435,455,999.70x = 653,183,999.55 × 391,114,137.30
  4. Step 4: Simplify right side
    435,455,999.70x = 255,469,496,482,161,824
  5. Step 5: Solve for x
    x = 255,469,496,482,161,824/435,455,999.70
  6. Step 6: Final answer
    x = 586,671,205.95

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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.