Home / 28,333,091.80-42,499,637.70-18,129,424.60

Finding the Fourth Proportional to 28,333,091.80, 42,499,637.70 and 18,129,424.60

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Solution

The fourth proportional to 28,333,091.80, 42,499,637.70 and 18,129,424.60 is: 27,194,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333,091.80 : 42,499,637.70 = 18,129,424.60 : x
  2. Step 2: Convert to fraction form
    28,333,091.80/42,499,637.70 = 18,129,424.60/x
  3. Step 3: Cross multiply
    28,333,091.80x = 42,499,637.70 × 18,129,424.60
  4. Step 4: Simplify right side
    28,333,091.80x = 770,493,977,209,467.50
  5. Step 5: Solve for x
    x = 770,493,977,209,467.50/28,333,091.80
  6. Step 6: Final answer
    x = 27,194,136.90

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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.