Home / 805,883,410.20-1,208,526,516.90-260,642,731.80

Finding the Fourth Proportional to 805,883,410.20, 1,208,526,516.90 and 260,642,731.80

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Solution

The fourth proportional to 805,883,410.20, 1,208,526,516.90 and 260,642,731.80 is: 390,867,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,883,410.20 : 1,208,526,516.90 = 260,642,731.80 : x
  2. Step 2: Convert to fraction form
    805,883,410.20/1,208,526,516.90 = 260,642,731.80/x
  3. Step 3: Cross multiply
    805,883,410.20x = 1,208,526,516.90 × 260,642,731.80
  4. Step 4: Simplify right side
    805,883,410.20x = 314,993,652,817,554,880
  5. Step 5: Solve for x
    x = 314,993,652,817,554,880/805,883,410.20
  6. Step 6: Final answer
    x = 390,867,523.55

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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.