Home / 28,687,949.75-39,588,357.83-15,634,949.60

Finding the Fourth Proportional to 28,687,949.75, 39,588,357.83 and 15,634,949.60

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Solution

The fourth proportional to 28,687,949.75, 39,588,357.83 and 15,634,949.60 is: 21,575,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687,949.75 : 39,588,357.83 = 15,634,949.60 : x
  2. Step 2: Convert to fraction form
    28,687,949.75/39,588,357.83 = 15,634,949.60/x
  3. Step 3: Cross multiply
    28,687,949.75x = 39,588,357.83 × 15,634,949.60
  4. Step 4: Simplify right side
    28,687,949.75x = 618,961,979,439,611.50
  5. Step 5: Solve for x
    x = 618,961,979,439,611.50/28,687,949.75
  6. Step 6: Final answer
    x = 21,575,678.46

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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.