Home / 1,286,511,006.78-1,929,981,754.71-1,010,151,072.54

Finding the Fourth Proportional to 1,286,511,006.78, 1,929,981,754.71 and 1,010,151,072.54

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Solution

The fourth proportional to 1,286,511,006.78, 1,929,981,754.71 and 1,010,151,072.54 is: 1,515,395,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,511,006.78 : 1,929,981,754.71 = 1,010,151,072.54 : x
  2. Step 2: Convert to fraction form
    1,286,511,006.78/1,929,981,754.71 = 1,010,151,072.54/x
  3. Step 3: Cross multiply
    1,286,511,006.78x = 1,929,981,754.71 × 1,010,151,072.54
  4. Step 4: Simplify right side
    1,286,511,006.78x = 1,949,573,139,502,937,600
  5. Step 5: Solve for x
    x = 1,949,573,139,502,937,600/1,286,511,006.78
  6. Step 6: Final answer
    x = 1,515,395,615.92

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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.