Home / 3,928,445,138.16-5,420,445,011.82-2,257,371,428.94

Finding the Fourth Proportional to 3,928,445,138.16, 5,420,445,011.82 and 2,257,371,428.94

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Solution

The fourth proportional to 3,928,445,138.16, 5,420,445,011.82 and 2,257,371,428.94 is: 3,114,707,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,445,138.16 : 5,420,445,011.82 = 2,257,371,428.94 : x
  2. Step 2: Convert to fraction form
    3,928,445,138.16/5,420,445,011.82 = 2,257,371,428.94/x
  3. Step 3: Cross multiply
    3,928,445,138.16x = 5,420,445,011.82 × 2,257,371,428.94
  4. Step 4: Simplify right side
    3,928,445,138.16x = 12,235,957,701,822,808,064
  5. Step 5: Solve for x
    x = 12,235,957,701,822,808,064/3,928,445,138.16
  6. Step 6: Final answer
    x = 3,114,707,542.42

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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.