Home / 3,928,445,057.43-5,420,444,900.57-2,257,371,348.21

Finding the Fourth Proportional to 3,928,445,057.43, 5,420,444,900.57 and 2,257,371,348.21

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Solution

The fourth proportional to 3,928,445,057.43, 5,420,444,900.57 and 2,257,371,348.21 is: 3,114,707,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,445,057.43 : 5,420,444,900.57 = 2,257,371,348.21 : x
  2. Step 2: Convert to fraction form
    3,928,445,057.43/5,420,444,900.57 = 2,257,371,348.21/x
  3. Step 3: Cross multiply
    3,928,445,057.43x = 5,420,444,900.57 × 2,257,371,348.21
  4. Step 4: Simplify right side
    3,928,445,057.43x = 12,235,957,013,095,012,352
  5. Step 5: Solve for x
    x = 12,235,957,013,095,012,352/3,928,445,057.43
  6. Step 6: Final answer
    x = 3,114,707,431.11

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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.