Home / 28,446,406.86-39,255,742.32-15,393,379.98

Finding the Fourth Proportional to 28,446,406.86, 39,255,742.32 and 15,393,379.98

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Solution

The fourth proportional to 28,446,406.86, 39,255,742.32 and 15,393,379.98 is: 21,242,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446,406.86 : 39,255,742.32 = 15,393,379.98 : x
  2. Step 2: Convert to fraction form
    28,446,406.86/39,255,742.32 = 15,393,379.98/x
  3. Step 3: Cross multiply
    28,446,406.86x = 39,255,742.32 × 15,393,379.98
  4. Step 4: Simplify right side
    28,446,406.86x = 604,278,557,928,726.75
  5. Step 5: Solve for x
    x = 604,278,557,928,726.75/28,446,406.86
  6. Step 6: Final answer
    x = 21,242,702.49

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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.