Home / 28,077,751.88-42,088,727.17-19,540,152.21

Finding the Fourth Proportional to 28,077,751.88, 42,088,727.17 and 19,540,152.21

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Solution

The fourth proportional to 28,077,751.88, 42,088,727.17 and 19,540,152.21 is: 29,290,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,751.88 : 42,088,727.17 = 19,540,152.21 : x
  2. Step 2: Convert to fraction form
    28,077,751.88/42,088,727.17 = 19,540,152.21/x
  3. Step 3: Cross multiply
    28,077,751.88x = 42,088,727.17 × 19,540,152.21
  4. Step 4: Simplify right side
    28,077,751.88x = 822,420,135,299,307.12
  5. Step 5: Solve for x
    x = 822,420,135,299,307.12/28,077,751.88
  6. Step 6: Final answer
    x = 29,290,811.42

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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.