Home / 100,042,377.74-138,072,980.63-57,647,689.23

Finding the Fourth Proportional to 100,042,377.74, 138,072,980.63 and 57,647,689.23

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Solution

The fourth proportional to 100,042,377.74, 138,072,980.63 and 57,647,689.23 is: 79,562,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,377.74 : 138,072,980.63 = 57,647,689.23 : x
  2. Step 2: Convert to fraction form
    100,042,377.74/138,072,980.63 = 57,647,689.23/x
  3. Step 3: Cross multiply
    100,042,377.74x = 138,072,980.63 × 57,647,689.23
  4. Step 4: Simplify right side
    100,042,377.74x = 7,959,588,278,129,811
  5. Step 5: Solve for x
    x = 7,959,588,278,129,811/100,042,377.74
  6. Step 6: Final answer
    x = 79,562,166.14

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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.