Home / 15,880,905,758.40-21,916,042,946.60-8,647,349,791.38

Finding the Fourth Proportional to 15,880,905,758.40, 21,916,042,946.60 and 8,647,349,791.38

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Solution

The fourth proportional to 15,880,905,758.40, 21,916,042,946.60 and 8,647,349,791.38 is: 11,933,556,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880,905,758.40 : 21,916,042,946.60 = 8,647,349,791.38 : x
  2. Step 2: Convert to fraction form
    15,880,905,758.40/21,916,042,946.60 = 8,647,349,791.38/x
  3. Step 3: Cross multiply
    15,880,905,758.40x = 21,916,042,946.60 × 8,647,349,791.38
  4. Step 4: Simplify right side
    15,880,905,758.40x = 189,515,689,402,113,392,640
  5. Step 5: Solve for x
    x = 189,515,689,402,113,392,640/15,880,905,758.40
  6. Step 6: Final answer
    x = 11,933,556,705.47

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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.