Home / 815,745,687.96-1,222,747,358.08-465,237,025.47

Finding the Fourth Proportional to 815,745,687.96, 1,222,747,358.08 and 465,237,025.47

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Solution

The fourth proportional to 815,745,687.96, 1,222,747,358.08 and 465,237,025.47 is: 697,358,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,745,687.96 : 1,222,747,358.08 = 465,237,025.47 : x
  2. Step 2: Convert to fraction form
    815,745,687.96/1,222,747,358.08 = 465,237,025.47/x
  3. Step 3: Cross multiply
    815,745,687.96x = 1,222,747,358.08 × 465,237,025.47
  4. Step 4: Simplify right side
    815,745,687.96x = 568,867,343,774,440,192
  5. Step 5: Solve for x
    x = 568,867,343,774,440,192/815,745,687.96
  6. Step 6: Final answer
    x = 697,358,689.32

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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.