Home / 28,288,772.80-42,333,626.40-25,899,985.60

Finding the Fourth Proportional to 28,288,772.80, 42,333,626.40 and 25,899,985.60

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Solution

The fourth proportional to 28,288,772.80, 42,333,626.40 and 25,899,985.60 is: 38,758,850.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288,772.80 : 42,333,626.40 = 25,899,985.60 : x
  2. Step 2: Convert to fraction form
    28,288,772.80/42,333,626.40 = 25,899,985.60/x
  3. Step 3: Cross multiply
    28,288,772.80x = 42,333,626.40 × 25,899,985.60
  4. Step 4: Simplify right side
    28,288,772.80x = 1,096,440,314,155,779.88
  5. Step 5: Solve for x
    x = 1,096,440,314,155,779.88/28,288,772.80
  6. Step 6: Final answer
    x = 38,758,850.44

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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.