Home / 3,420,443.70-5,127,281.55-1,620,162.90

Finding the Fourth Proportional to 3,420,443.70, 5,127,281.55 and 1,620,162.90

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Solution

The fourth proportional to 3,420,443.70, 5,127,281.55 and 1,620,162.90 is: 2,428,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,443.70 : 5,127,281.55 = 1,620,162.90 : x
  2. Step 2: Convert to fraction form
    3,420,443.70/5,127,281.55 = 1,620,162.90/x
  3. Step 3: Cross multiply
    3,420,443.70x = 5,127,281.55 × 1,620,162.90
  4. Step 4: Simplify right side
    3,420,443.70x = 8,307,031,345,164.49
  5. Step 5: Solve for x
    x = 8,307,031,345,164.49/3,420,443.70
  6. Step 6: Final answer
    x = 2,428,641.45

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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.