Home / 5,425,854.70-8,140,078.05-1,639,374.70

Finding the Fourth Proportional to 5,425,854.70, 8,140,078.05 and 1,639,374.70

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Solution

The fourth proportional to 5,425,854.70, 8,140,078.05 and 1,639,374.70 is: 2,459,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425,854.70 : 8,140,078.05 = 1,639,374.70 : x
  2. Step 2: Convert to fraction form
    5,425,854.70/8,140,078.05 = 1,639,374.70/x
  3. Step 3: Cross multiply
    5,425,854.70x = 8,140,078.05 × 1,639,374.70
  4. Step 4: Simplify right side
    5,425,854.70x = 13,344,638,011,195.33
  5. Step 5: Solve for x
    x = 13,344,638,011,195.33/5,425,854.70
  6. Step 6: Final answer
    x = 2,459,453.63

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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.