Home / 505,393,037.70-697,478,482.44-279,327,158.15

Finding the Fourth Proportional to 505,393,037.70, 697,478,482.44 and 279,327,158.15

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Solution

The fourth proportional to 505,393,037.70, 697,478,482.44 and 279,327,158.15 is: 385,491,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,393,037.70 : 697,478,482.44 = 279,327,158.15 : x
  2. Step 2: Convert to fraction form
    505,393,037.70/697,478,482.44 = 279,327,158.15/x
  3. Step 3: Cross multiply
    505,393,037.70x = 697,478,482.44 × 279,327,158.15
  4. Step 4: Simplify right side
    505,393,037.70x = 194,824,682,367,252,480
  5. Step 5: Solve for x
    x = 194,824,682,367,252,480/505,393,037.70
  6. Step 6: Final answer
    x = 385,491,425.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.