Home / 3,918,779.69-5,408,182.80-2,176,648.30

Finding the Fourth Proportional to 3,918,779.69, 5,408,182.80 and 2,176,648.30

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Solution

The fourth proportional to 3,918,779.69, 5,408,182.80 and 2,176,648.30 is: 3,003,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,779.69 : 5,408,182.80 = 2,176,648.30 : x
  2. Step 2: Convert to fraction form
    3,918,779.69/5,408,182.80 = 2,176,648.30/x
  3. Step 3: Cross multiply
    3,918,779.69x = 5,408,182.80 × 2,176,648.30
  4. Step 4: Simplify right side
    3,918,779.69x = 11,771,711,859,785.08
  5. Step 5: Solve for x
    x = 11,771,711,859,785.08/3,918,779.69
  6. Step 6: Final answer
    x = 3,003,922.85

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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.