Home / 1,102,009,778.85-1,520,716,084.61-684,313,103.37

Finding the Fourth Proportional to 1,102,009,778.85, 1,520,716,084.61 and 684,313,103.37

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Solution

The fourth proportional to 1,102,009,778.85, 1,520,716,084.61 and 684,313,103.37 is: 944,316,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,009,778.85 : 1,520,716,084.61 = 684,313,103.37 : x
  2. Step 2: Convert to fraction form
    1,102,009,778.85/1,520,716,084.61 = 684,313,103.37/x
  3. Step 3: Cross multiply
    1,102,009,778.85x = 1,520,716,084.61 × 684,313,103.37
  4. Step 4: Simplify right side
    1,102,009,778.85x = 1,040,645,943,200,723,072
  5. Step 5: Solve for x
    x = 1,040,645,943,200,723,072/1,102,009,778.85
  6. Step 6: Final answer
    x = 944,316,432.73

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Double scale
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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.