Home / 708,689,209.08-1,063,576,393.74-320,784,450.20

Finding the Fourth Proportional to 708,689,209.08, 1,063,576,393.74 and 320,784,450.20

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Solution

The fourth proportional to 708,689,209.08, 1,063,576,393.74 and 320,784,450.20 is: 481,422,271.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,689,209.08 : 1,063,576,393.74 = 320,784,450.20 : x
  2. Step 2: Convert to fraction form
    708,689,209.08/1,063,576,393.74 = 320,784,450.20/x
  3. Step 3: Cross multiply
    708,689,209.08x = 1,063,576,393.74 × 320,784,450.20
  4. Step 4: Simplify right side
    708,689,209.08x = 341,178,768,711,584,640
  5. Step 5: Solve for x
    x = 341,178,768,711,584,640/708,689,209.08
  6. Step 6: Final answer
    x = 481,422,271.34

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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.