Home / 3,890,354.77-5,368,676.24-2,171,460.25

Finding the Fourth Proportional to 3,890,354.77, 5,368,676.24 and 2,171,460.25

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Solution

The fourth proportional to 3,890,354.77, 5,368,676.24 and 2,171,460.25 is: 2,996,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,354.77 : 5,368,676.24 = 2,171,460.25 : x
  2. Step 2: Convert to fraction form
    3,890,354.77/5,368,676.24 = 2,171,460.25/x
  3. Step 3: Cross multiply
    3,890,354.77x = 5,368,676.24 × 2,171,460.25
  4. Step 4: Simplify right side
    3,890,354.77x = 11,657,867,012,578.78
  5. Step 5: Solve for x
    x = 11,657,867,012,578.78/3,890,354.77
  6. Step 6: Final answer
    x = 2,996,607.69

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Double scale
Find fourth proportional to 3,890,355.77, 5,368,677.61 and 2,171,461.25
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1.5x scale

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.