Home / 1,429,034,477.11-2,142,815,711.38-641,412,921.73

Finding the Fourth Proportional to 1,429,034,477.11, 2,142,815,711.38 and 641,412,921.73

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Solution

The fourth proportional to 1,429,034,477.11, 2,142,815,711.38 and 641,412,921.73 is: 961,789,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,034,477.11 : 2,142,815,711.38 = 641,412,921.73 : x
  2. Step 2: Convert to fraction form
    1,429,034,477.11/2,142,815,711.38 = 641,412,921.73/x
  3. Step 3: Cross multiply
    1,429,034,477.11x = 2,142,815,711.38 × 641,412,921.73
  4. Step 4: Simplify right side
    1,429,034,477.11x = 1,374,429,686,165,194,240
  5. Step 5: Solve for x
    x = 1,374,429,686,165,194,240/1,429,034,477.11
  6. Step 6: Final answer
    x = 961,789,031.81

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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.