Home / 28,656,076.80-42,984,115.20-19,090,138.80

Finding the Fourth Proportional to 28,656,076.80, 42,984,115.20 and 19,090,138.80

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Solution

The fourth proportional to 28,656,076.80, 42,984,115.20 and 19,090,138.80 is: 28,635,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,076.80 : 42,984,115.20 = 19,090,138.80 : x
  2. Step 2: Convert to fraction form
    28,656,076.80/42,984,115.20 = 19,090,138.80/x
  3. Step 3: Cross multiply
    28,656,076.80x = 42,984,115.20 × 19,090,138.80
  4. Step 4: Simplify right side
    28,656,076.80x = 820,572,725,363,189.88
  5. Step 5: Solve for x
    x = 820,572,725,363,189.88/28,656,076.80
  6. Step 6: Final answer
    x = 28,635,208.20

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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.