Home / 1,661,469,416.64-2,492,208,346.41-678,895,957.98

Finding the Fourth Proportional to 1,661,469,416.64, 2,492,208,346.41 and 678,895,957.98

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Solution

The fourth proportional to 1,661,469,416.64, 2,492,208,346.41 and 678,895,957.98 is: 1,018,345,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,469,416.64 : 2,492,208,346.41 = 678,895,957.98 : x
  2. Step 2: Convert to fraction form
    1,661,469,416.64/2,492,208,346.41 = 678,895,957.98/x
  3. Step 3: Cross multiply
    1,661,469,416.64x = 2,492,208,346.41 × 678,895,957.98
  4. Step 4: Simplify right side
    1,661,469,416.64x = 1,691,950,172,821,768,704
  5. Step 5: Solve for x
    x = 1,691,950,172,821,768,704/1,661,469,416.64
  6. Step 6: Final answer
    x = 1,018,345,661.90

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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.