Home / 28,347,200.80-42,520,801.20-19,687,847.20

Finding the Fourth Proportional to 28,347,200.80, 42,520,801.20 and 19,687,847.20

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Solution

The fourth proportional to 28,347,200.80, 42,520,801.20 and 19,687,847.20 is: 29,531,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,200.80 : 42,520,801.20 = 19,687,847.20 : x
  2. Step 2: Convert to fraction form
    28,347,200.80/42,520,801.20 = 19,687,847.20/x
  3. Step 3: Cross multiply
    28,347,200.80x = 42,520,801.20 × 19,687,847.20
  4. Step 4: Simplify right side
    28,347,200.80x = 837,143,036,847,176.62
  5. Step 5: Solve for x
    x = 837,143,036,847,176.62/28,347,200.80
  6. Step 6: Final answer
    x = 29,531,770.80

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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.