Home / 520,129,795.46-780,075,304.40-310,099,910.92

Finding the Fourth Proportional to 520,129,795.46, 780,075,304.40 and 310,099,910.92

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Solution

The fourth proportional to 520,129,795.46, 780,075,304.40 and 310,099,910.92 is: 465,078,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,795.46 : 780,075,304.40 = 310,099,910.92 : x
  2. Step 2: Convert to fraction form
    520,129,795.46/780,075,304.40 = 310,099,910.92/x
  3. Step 3: Cross multiply
    520,129,795.46x = 780,075,304.40 × 310,099,910.92
  4. Step 4: Simplify right side
    520,129,795.46x = 241,901,282,405,331,904
  5. Step 5: Solve for x
    x = 241,901,282,405,331,904/520,129,795.46
  6. Step 6: Final answer
    x = 465,078,687.12

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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.