Home / 476,471,610.40-714,707,415.60-428,098,669.60

Finding the Fourth Proportional to 476,471,610.40, 714,707,415.60 and 428,098,669.60

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Solution

The fourth proportional to 476,471,610.40, 714,707,415.60 and 428,098,669.60 is: 642,148,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,471,610.40 : 714,707,415.60 = 428,098,669.60 : x
  2. Step 2: Convert to fraction form
    476,471,610.40/714,707,415.60 = 428,098,669.60/x
  3. Step 3: Cross multiply
    476,471,610.40x = 714,707,415.60 × 428,098,669.60
  4. Step 4: Simplify right side
    476,471,610.40x = 305,965,293,771,614,336
  5. Step 5: Solve for x
    x = 305,965,293,771,614,336/476,471,610.40
  6. Step 6: Final answer
    x = 642,148,004.40

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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.