Home / 783,262,371.08-1,082,452,287.15-641,910,690.35

Finding the Fourth Proportional to 783,262,371.08, 1,082,452,287.15 and 641,910,690.35

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Solution

The fourth proportional to 783,262,371.08, 1,082,452,287.15 and 641,910,690.35 is: 887,107,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,262,371.08 : 1,082,452,287.15 = 641,910,690.35 : x
  2. Step 2: Convert to fraction form
    783,262,371.08/1,082,452,287.15 = 641,910,690.35/x
  3. Step 3: Cross multiply
    783,262,371.08x = 1,082,452,287.15 × 641,910,690.35
  4. Step 4: Simplify right side
    783,262,371.08x = 694,837,694,912,870,784
  5. Step 5: Solve for x
    x = 694,837,694,912,870,784/783,262,371.08
  6. Step 6: Final answer
    x = 887,107,207.71

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1.5x scale

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.