Home / 6,391,317.51-8,820,209.16-3,490,845.21

Finding the Fourth Proportional to 6,391,317.51, 8,820,209.16 and 3,490,845.21

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Solution

The fourth proportional to 6,391,317.51, 8,820,209.16 and 3,490,845.21 is: 4,817,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,317.51 : 8,820,209.16 = 3,490,845.21 : x
  2. Step 2: Convert to fraction form
    6,391,317.51/8,820,209.16 = 3,490,845.21/x
  3. Step 3: Cross multiply
    6,391,317.51x = 8,820,209.16 × 3,490,845.21
  4. Step 4: Simplify right side
    6,391,317.51x = 30,789,984,897,384.12
  5. Step 5: Solve for x
    x = 30,789,984,897,384.12/6,391,317.51
  6. Step 6: Final answer
    x = 4,817,470.71

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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.