Home / 520,129,794.46-780,075,302.90-310,099,909.92

Finding the Fourth Proportional to 520,129,794.46, 780,075,302.90 and 310,099,909.92

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Solution

The fourth proportional to 520,129,794.46, 780,075,302.90 and 310,099,909.92 is: 465,078,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,794.46 : 780,075,302.90 = 310,099,909.92 : x
  2. Step 2: Convert to fraction form
    520,129,794.46/780,075,302.90 = 310,099,909.92/x
  3. Step 3: Cross multiply
    520,129,794.46x = 780,075,302.90 × 310,099,909.92
  4. Step 4: Simplify right side
    520,129,794.46x = 241,901,281,160,106,720
  5. Step 5: Solve for x
    x = 241,901,281,160,106,720/520,129,794.46
  6. Step 6: Final answer
    x = 465,078,685.62

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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.