Home / 3,886,281.40-5,820,090.90-3,139,785.40

Finding the Fourth Proportional to 3,886,281.40, 5,820,090.90 and 3,139,785.40

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Solution

The fourth proportional to 3,886,281.40, 5,820,090.90 and 3,139,785.40 is: 4,702,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886,281.40 : 5,820,090.90 = 3,139,785.40 : x
  2. Step 2: Convert to fraction form
    3,886,281.40/5,820,090.90 = 3,139,785.40/x
  3. Step 3: Cross multiply
    3,886,281.40x = 5,820,090.90 × 3,139,785.40
  4. Step 4: Simplify right side
    3,886,281.40x = 18,273,836,434,492.86
  5. Step 5: Solve for x
    x = 18,273,836,434,492.86/3,886,281.40
  6. Step 6: Final answer
    x = 4,702,139.28

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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.