Home / 862,162,429.80-1,293,243,644.70-425,672,221.80

Finding the Fourth Proportional to 862,162,429.80, 1,293,243,644.70 and 425,672,221.80

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Solution

The fourth proportional to 862,162,429.80, 1,293,243,644.70 and 425,672,221.80 is: 638,508,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,162,429.80 : 1,293,243,644.70 = 425,672,221.80 : x
  2. Step 2: Convert to fraction form
    862,162,429.80/1,293,243,644.70 = 425,672,221.80/x
  3. Step 3: Cross multiply
    862,162,429.80x = 1,293,243,644.70 × 425,672,221.80
  4. Step 4: Simplify right side
    862,162,429.80x = 550,497,895,568,178,816
  5. Step 5: Solve for x
    x = 550,497,895,568,178,816/862,162,429.80
  6. Step 6: Final answer
    x = 638,508,332.70

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1.5x scale

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.