Home / 18,756,686.88-28,131,093.36-5,290,365.60

Finding the Fourth Proportional to 18,756,686.88, 28,131,093.36 and 5,290,365.60

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Solution

The fourth proportional to 18,756,686.88, 28,131,093.36 and 5,290,365.60 is: 7,934,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,686.88 : 28,131,093.36 = 5,290,365.60 : x
  2. Step 2: Convert to fraction form
    18,756,686.88/28,131,093.36 = 5,290,365.60/x
  3. Step 3: Cross multiply
    18,756,686.88x = 28,131,093.36 × 5,290,365.60
  4. Step 4: Simplify right side
    18,756,686.88x = 148,823,768,602,132.41
  5. Step 5: Solve for x
    x = 148,823,768,602,132.41/18,756,686.88
  6. Step 6: Final answer
    x = 7,934,437.97

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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.