Home / 499,494,570.21-689,287,542.60-276,485,392.89

Finding the Fourth Proportional to 499,494,570.21, 689,287,542.60 and 276,485,392.89

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Solution

The fourth proportional to 499,494,570.21, 689,287,542.60 and 276,485,392.89 is: 381,541,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,494,570.21 : 689,287,542.60 = 276,485,392.89 : x
  2. Step 2: Convert to fraction form
    499,494,570.21/689,287,542.60 = 276,485,392.89/x
  3. Step 3: Cross multiply
    499,494,570.21x = 689,287,542.60 × 276,485,392.89
  4. Step 4: Simplify right side
    499,494,570.21x = 190,577,937,029,943,616
  5. Step 5: Solve for x
    x = 190,577,937,029,943,616/499,494,570.21
  6. Step 6: Final answer
    x = 381,541,559.00

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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.