Home / 520,129,797.97-780,075,308.13-310,099,913.41

Finding the Fourth Proportional to 520,129,797.97, 780,075,308.13 and 310,099,913.41

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Solution

The fourth proportional to 520,129,797.97, 780,075,308.13 and 310,099,913.41 is: 465,078,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,797.97 : 780,075,308.13 = 310,099,913.41 : x
  2. Step 2: Convert to fraction form
    520,129,797.97/780,075,308.13 = 310,099,913.41/x
  3. Step 3: Cross multiply
    520,129,797.97x = 780,075,308.13 × 310,099,913.41
  4. Step 4: Simplify right side
    520,129,797.97x = 241,901,285,504,392,096
  5. Step 5: Solve for x
    x = 241,901,285,504,392,096/520,129,797.97
  6. Step 6: Final answer
    x = 465,078,690.84

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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.