Home / 12,197,795,145.89-18,297,533,239.43-5,108,139,768.83

Finding the Fourth Proportional to 12,197,795,145.89, 18,297,533,239.43 and 5,108,139,768.83

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Solution

The fourth proportional to 12,197,795,145.89, 18,297,533,239.43 and 5,108,139,768.83 is: 7,662,561,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197,795,145.89 : 18,297,533,239.43 = 5,108,139,768.83 : x
  2. Step 2: Convert to fraction form
    12,197,795,145.89/18,297,533,239.43 = 5,108,139,768.83/x
  3. Step 3: Cross multiply
    12,197,795,145.89x = 18,297,533,239.43 × 5,108,139,768.83
  4. Step 4: Simplify right side
    12,197,795,145.89x = 93,466,357,211,704,164,352
  5. Step 5: Solve for x
    x = 93,466,357,211,704,164,352/12,197,795,145.89
  6. Step 6: Final answer
    x = 7,662,561,642.81

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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.