Home / 520,129,793.46-780,075,301.40-310,099,908.92

Finding the Fourth Proportional to 520,129,793.46, 780,075,301.40 and 310,099,908.92

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Solution

The fourth proportional to 520,129,793.46, 780,075,301.40 and 310,099,908.92 is: 465,078,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,793.46 : 780,075,301.40 = 310,099,908.92 : x
  2. Step 2: Convert to fraction form
    520,129,793.46/780,075,301.40 = 310,099,908.92/x
  3. Step 3: Cross multiply
    520,129,793.46x = 780,075,301.40 × 310,099,908.92
  4. Step 4: Simplify right side
    520,129,793.46x = 241,901,279,912,156,128
  5. Step 5: Solve for x
    x = 241,901,279,912,156,128/520,129,793.46
  6. Step 6: Final answer
    x = 465,078,684.12

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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.