Home / 28,385,459.20-42,554,860.80-12,223,820.80

Finding the Fourth Proportional to 28,385,459.20, 42,554,860.80 and 12,223,820.80

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Solution

The fourth proportional to 28,385,459.20, 42,554,860.80 and 12,223,820.80 is: 18,325,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,459.20 : 42,554,860.80 = 12,223,820.80 : x
  2. Step 2: Convert to fraction form
    28,385,459.20/42,554,860.80 = 12,223,820.80/x
  3. Step 3: Cross multiply
    28,385,459.20x = 42,554,860.80 × 12,223,820.80
  4. Step 4: Simplify right side
    28,385,459.20x = 520,182,992,588,144.62
  5. Step 5: Solve for x
    x = 520,182,992,588,144.62/28,385,459.20
  6. Step 6: Final answer
    x = 18,325,685.31

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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.