Home / 619,521,178.82-929,009,072.61-328,320,075.87

Finding the Fourth Proportional to 619,521,178.82, 929,009,072.61 and 328,320,075.87

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Solution

The fourth proportional to 619,521,178.82, 929,009,072.61 and 328,320,075.87 is: 492,335,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,521,178.82 : 929,009,072.61 = 328,320,075.87 : x
  2. Step 2: Convert to fraction form
    619,521,178.82/929,009,072.61 = 328,320,075.87/x
  3. Step 3: Cross multiply
    619,521,178.82x = 929,009,072.61 × 328,320,075.87
  4. Step 4: Simplify right side
    619,521,178.82x = 305,012,329,203,233,536
  5. Step 5: Solve for x
    x = 305,012,329,203,233,536/619,521,178.82
  6. Step 6: Final answer
    x = 492,335,596.64

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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.