Home / 3,928,445,148.79-5,420,445,026.48-2,257,371,439.57

Finding the Fourth Proportional to 3,928,445,148.79, 5,420,445,026.48 and 2,257,371,439.57

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Solution

The fourth proportional to 3,928,445,148.79, 5,420,445,026.48 and 2,257,371,439.57 is: 3,114,707,557.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,445,148.79 : 5,420,445,026.48 = 2,257,371,439.57 : x
  2. Step 2: Convert to fraction form
    3,928,445,148.79/5,420,445,026.48 = 2,257,371,439.57/x
  3. Step 3: Cross multiply
    3,928,445,148.79x = 5,420,445,026.48 × 2,257,371,439.57
  4. Step 4: Simplify right side
    3,928,445,148.79x = 12,235,957,792,508,100,608
  5. Step 5: Solve for x
    x = 12,235,957,792,508,100,608/3,928,445,148.79
  6. Step 6: Final answer
    x = 3,114,707,557.08

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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.