Home / 554,165,021.37-764,747,235.42-312,811,798.57

Finding the Fourth Proportional to 554,165,021.37, 764,747,235.42 and 312,811,798.57

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Solution

The fourth proportional to 554,165,021.37, 764,747,235.42 and 312,811,798.57 is: 431,680,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,165,021.37 : 764,747,235.42 = 312,811,798.57 : x
  2. Step 2: Convert to fraction form
    554,165,021.37/764,747,235.42 = 312,811,798.57/x
  3. Step 3: Cross multiply
    554,165,021.37x = 764,747,235.42 × 312,811,798.57
  4. Step 4: Simplify right side
    554,165,021.37x = 239,221,958,163,165,376
  5. Step 5: Solve for x
    x = 239,221,958,163,165,376/554,165,021.37
  6. Step 6: Final answer
    x = 431,680,003.14

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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.