Home / 499,973,651.40-689,969,157.30-276,958,749

Finding the Fourth Proportional to 499,973,651.40, 689,969,157.30 and 276,958,749

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Solution

The fourth proportional to 499,973,651.40, 689,969,157.30 and 276,958,749 is: 382,206,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,973,651.40 : 689,969,157.30 = 276,958,749 : x
  2. Step 2: Convert to fraction form
    499,973,651.40/689,969,157.30 = 276,958,749/x
  3. Step 3: Cross multiply
    499,973,651.40x = 689,969,157.30 × 276,958,749
  4. Step 4: Simplify right side
    499,973,651.40x = 191,092,994,654,392,192
  5. Step 5: Solve for x
    x = 191,092,994,654,392,192/499,973,651.40
  6. Step 6: Final answer
    x = 382,206,130.50

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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.