Home / 28,467,280.80-42,706,450.80-12,293,200.80

Finding the Fourth Proportional to 28,467,280.80, 42,706,450.80 and 12,293,200.80

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Solution

The fourth proportional to 28,467,280.80, 42,706,450.80 and 12,293,200.80 is: 18,442,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467,280.80 : 42,706,450.80 = 12,293,200.80 : x
  2. Step 2: Convert to fraction form
    28,467,280.80/42,706,450.80 = 12,293,200.80/x
  3. Step 3: Cross multiply
    28,467,280.80x = 42,706,450.80 × 12,293,200.80
  4. Step 4: Simplify right side
    28,467,280.80x = 524,998,975,139,720.62
  5. Step 5: Solve for x
    x = 524,998,975,139,720.62/28,467,280.80
  6. Step 6: Final answer
    x = 18,442,189.08

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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.