Home / 1,515,711,911.28-2,091,685,679.19-855,662,189.28

Finding the Fourth Proportional to 1,515,711,911.28, 2,091,685,679.19 and 855,662,189.28

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Solution

The fourth proportional to 1,515,711,911.28, 2,091,685,679.19 and 855,662,189.28 is: 1,180,815,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,711,911.28 : 2,091,685,679.19 = 855,662,189.28 : x
  2. Step 2: Convert to fraction form
    1,515,711,911.28/2,091,685,679.19 = 855,662,189.28/x
  3. Step 3: Cross multiply
    1,515,711,911.28x = 2,091,685,679.19 × 855,662,189.28
  4. Step 4: Simplify right side
    1,515,711,911.28x = 1,789,776,347,541,339,136
  5. Step 5: Solve for x
    x = 1,789,776,347,541,339,136/1,515,711,911.28
  6. Step 6: Final answer
    x = 1,180,815,651.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.