Home / 2,919,742.80-4,376,633.40-1,973,209.20

Finding the Fourth Proportional to 2,919,742.80, 4,376,633.40 and 1,973,209.20

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Solution

The fourth proportional to 2,919,742.80, 4,376,633.40 and 1,973,209.20 is: 2,957,799.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919,742.80 : 4,376,633.40 = 1,973,209.20 : x
  2. Step 2: Convert to fraction form
    2,919,742.80/4,376,633.40 = 1,973,209.20/x
  3. Step 3: Cross multiply
    2,919,742.80x = 4,376,633.40 × 1,973,209.20
  4. Step 4: Simplify right side
    2,919,742.80x = 8,636,013,289,907.28
  5. Step 5: Solve for x
    x = 8,636,013,289,907.28/2,919,742.80
  6. Step 6: Final answer
    x = 2,957,799.33

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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.