Home / 2,777,128.40-3,830,894.39-1,615,443.89

Finding the Fourth Proportional to 2,777,128.40, 3,830,894.39 and 1,615,443.89

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Solution

The fourth proportional to 2,777,128.40, 3,830,894.39 and 1,615,443.89 is: 2,228,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777,128.40 : 3,830,894.39 = 1,615,443.89 : x
  2. Step 2: Convert to fraction form
    2,777,128.40/3,830,894.39 = 1,615,443.89/x
  3. Step 3: Cross multiply
    2,777,128.40x = 3,830,894.39 × 1,615,443.89
  4. Step 4: Simplify right side
    2,777,128.40x = 6,188,594,920,444.92
  5. Step 5: Solve for x
    x = 6,188,594,920,444.92/2,777,128.40
  6. Step 6: Final answer
    x = 2,228,415.12

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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.