Home / 780,055,943.40-1,170,083,915.10-262,314,311.40

Finding the Fourth Proportional to 780,055,943.40, 1,170,083,915.10 and 262,314,311.40

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Solution

The fourth proportional to 780,055,943.40, 1,170,083,915.10 and 262,314,311.40 is: 393,471,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,055,943.40 : 1,170,083,915.10 = 262,314,311.40 : x
  2. Step 2: Convert to fraction form
    780,055,943.40/1,170,083,915.10 = 262,314,311.40/x
  3. Step 3: Cross multiply
    780,055,943.40x = 1,170,083,915.10 × 262,314,311.40
  4. Step 4: Simplify right side
    780,055,943.40x = 306,929,756,469,672,576
  5. Step 5: Solve for x
    x = 306,929,756,469,672,576/780,055,943.40
  6. Step 6: Final answer
    x = 393,471,467.10

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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.