Home / 505,738,803.60-759,175,075.80-391,230,982.80

Finding the Fourth Proportional to 505,738,803.60, 759,175,075.80 and 391,230,982.80

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Solution

The fourth proportional to 505,738,803.60, 759,175,075.80 and 391,230,982.80 is: 587,284,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,738,803.60 : 759,175,075.80 = 391,230,982.80 : x
  2. Step 2: Convert to fraction form
    505,738,803.60/759,175,075.80 = 391,230,982.80/x
  3. Step 3: Cross multiply
    505,738,803.60x = 759,175,075.80 × 391,230,982.80
  4. Step 4: Simplify right side
    505,738,803.60x = 297,012,811,022,498,496
  5. Step 5: Solve for x
    x = 297,012,811,022,498,496/505,738,803.60
  6. Step 6: Final answer
    x = 587,284,995.55

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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.