Home / 6,986,430.48-9,640,494-3,930,579.12

Finding the Fourth Proportional to 6,986,430.48, 9,640,494 and 3,930,579.12

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Solution

The fourth proportional to 6,986,430.48, 9,640,494 and 3,930,579.12 is: 5,423,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986,430.48 : 9,640,494 = 3,930,579.12 : x
  2. Step 2: Convert to fraction form
    6,986,430.48/9,640,494 = 3,930,579.12/x
  3. Step 3: Cross multiply
    6,986,430.48x = 9,640,494 × 3,930,579.12
  4. Step 4: Simplify right side
    6,986,430.48x = 37,892,724,422,885.28
  5. Step 5: Solve for x
    x = 37,892,724,422,885.28/6,986,430.48
  6. Step 6: Final answer
    x = 5,423,760.32

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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.