Home / 2,888,876.76-3,987,937.44-1,909,405.74

Finding the Fourth Proportional to 2,888,876.76, 3,987,937.44 and 1,909,405.74

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Solution

The fourth proportional to 2,888,876.76, 3,987,937.44 and 1,909,405.74 is: 2,635,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888,876.76 : 3,987,937.44 = 1,909,405.74 : x
  2. Step 2: Convert to fraction form
    2,888,876.76/3,987,937.44 = 1,909,405.74/x
  3. Step 3: Cross multiply
    2,888,876.76x = 3,987,937.44 × 1,909,405.74
  4. Step 4: Simplify right side
    2,888,876.76x = 7,614,590,638,696.91
  5. Step 5: Solve for x
    x = 7,614,590,638,696.91/2,888,876.76
  6. Step 6: Final answer
    x = 2,635,830.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.