Home / 13,421,977,615.19-18,530,264,888.66-11,932,743,551.87

Finding the Fourth Proportional to 13,421,977,615.19, 18,530,264,888.66 and 11,932,743,551.87

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Solution

The fourth proportional to 13,421,977,615.19, 18,530,264,888.66 and 11,932,743,551.87 is: 16,474,241,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421,977,615.19 : 18,530,264,888.66 = 11,932,743,551.87 : x
  2. Step 2: Convert to fraction form
    13,421,977,615.19/18,530,264,888.66 = 11,932,743,551.87/x
  3. Step 3: Cross multiply
    13,421,977,615.19x = 18,530,264,888.66 × 11,932,743,551.87
  4. Step 4: Simplify right side
    13,421,977,615.19x = 221,116,898,864,541,007,872
  5. Step 5: Solve for x
    x = 221,116,898,864,541,007,872/13,421,977,615.19
  6. Step 6: Final answer
    x = 16,474,241,367.70

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Double scale
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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.