Home / 8,390,325,812.10-12,585,488,718.15-5,288,410,983.30

Finding the Fourth Proportional to 8,390,325,812.10, 12,585,488,718.15 and 5,288,410,983.30

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Solution

The fourth proportional to 8,390,325,812.10, 12,585,488,718.15 and 5,288,410,983.30 is: 7,932,616,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390,325,812.10 : 12,585,488,718.15 = 5,288,410,983.30 : x
  2. Step 2: Convert to fraction form
    8,390,325,812.10/12,585,488,718.15 = 5,288,410,983.30/x
  3. Step 3: Cross multiply
    8,390,325,812.10x = 12,585,488,718.15 × 5,288,410,983.30
  4. Step 4: Simplify right side
    8,390,325,812.10x = 66,557,236,767,262,695,424
  5. Step 5: Solve for x
    x = 66,557,236,767,262,695,424/8,390,325,812.10
  6. Step 6: Final answer
    x = 7,932,616,474.95

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.