Home / 12,643,317.20-18,936,982.20-10,403,829.20

Finding the Fourth Proportional to 12,643,317.20, 18,936,982.20 and 10,403,829.20

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Solution

The fourth proportional to 12,643,317.20, 18,936,982.20 and 10,403,829.20 is: 15,582,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,317.20 : 18,936,982.20 = 10,403,829.20 : x
  2. Step 2: Convert to fraction form
    12,643,317.20/18,936,982.20 = 10,403,829.20/x
  3. Step 3: Cross multiply
    12,643,317.20x = 18,936,982.20 × 10,403,829.20
  4. Step 4: Simplify right side
    12,643,317.20x = 197,017,128,372,240.22
  5. Step 5: Solve for x
    x = 197,017,128,372,240.22/12,643,317.20
  6. Step 6: Final answer
    x = 15,582,708.66

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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.