Home / 28,674,124.56-39,570,085.44-15,621,379.56

Finding the Fourth Proportional to 28,674,124.56, 39,570,085.44 and 15,621,379.56

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Solution

The fourth proportional to 28,674,124.56, 39,570,085.44 and 15,621,379.56 is: 21,557,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674,124.56 : 39,570,085.44 = 15,621,379.56 : x
  2. Step 2: Convert to fraction form
    28,674,124.56/39,570,085.44 = 15,621,379.56/x
  3. Step 3: Cross multiply
    28,674,124.56x = 39,570,085.44 × 15,621,379.56
  4. Step 4: Simplify right side
    28,674,124.56x = 618,139,323,879,869.62
  5. Step 5: Solve for x
    x = 618,139,323,879,869.62/28,674,124.56
  6. Step 6: Final answer
    x = 21,557,391.32

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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.