Home / 28,540,146.96-39,385,509.86-15,487,408.58

Finding the Fourth Proportional to 28,540,146.96, 39,385,509.86 and 15,487,408.58

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Solution

The fourth proportional to 28,540,146.96, 39,385,509.86 and 15,487,408.58 is: 21,372,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540,146.96 : 39,385,509.86 = 15,487,408.58 : x
  2. Step 2: Convert to fraction form
    28,540,146.96/39,385,509.86 = 15,487,408.58/x
  3. Step 3: Cross multiply
    28,540,146.96x = 39,385,509.86 × 15,487,408.58
  4. Step 4: Simplify right side
    28,540,146.96x = 609,979,483,175,229.50
  5. Step 5: Solve for x
    x = 609,979,483,175,229.50/28,540,146.96
  6. Step 6: Final answer
    x = 21,372,681.93

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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.