Home / 12,130,344,940.91-18,196,432,281.77-3,621,055,878.12

Finding the Fourth Proportional to 12,130,344,940.91, 18,196,432,281.77 and 3,621,055,878.12

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Solution

The fourth proportional to 12,130,344,940.91, 18,196,432,281.77 and 3,621,055,878.12 is: 5,431,856,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,344,940.91 : 18,196,432,281.77 = 3,621,055,878.12 : x
  2. Step 2: Convert to fraction form
    12,130,344,940.91/18,196,432,281.77 = 3,621,055,878.12/x
  3. Step 3: Cross multiply
    12,130,344,940.91x = 18,196,432,281.77 × 3,621,055,878.12
  4. Step 4: Simplify right side
    12,130,344,940.91x = 65,890,298,074,697,670,656
  5. Step 5: Solve for x
    x = 65,890,298,074,697,670,656/12,130,344,940.91
  6. Step 6: Final answer
    x = 5,431,856,917.15

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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.