Home / 71,104,836.86-106,657,255.31-19,986,855.68

Finding the Fourth Proportional to 71,104,836.86, 106,657,255.31 and 19,986,855.68

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Solution

The fourth proportional to 71,104,836.86, 106,657,255.31 and 19,986,855.68 is: 29,980,283.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,104,836.86 : 106,657,255.31 = 19,986,855.68 : x
  2. Step 2: Convert to fraction form
    71,104,836.86/106,657,255.31 = 19,986,855.68/x
  3. Step 3: Cross multiply
    71,104,836.86x = 106,657,255.31 × 19,986,855.68
  4. Step 4: Simplify right side
    71,104,836.86x = 2,131,743,168,472,663.25
  5. Step 5: Solve for x
    x = 2,131,743,168,472,663.25/71,104,836.86
  6. Step 6: Final answer
    x = 29,980,283.52

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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.