Home / 12,607,629.10-18,911,443.65-9,418,983.10

Finding the Fourth Proportional to 12,607,629.10, 18,911,443.65 and 9,418,983.10

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Solution

The fourth proportional to 12,607,629.10, 18,911,443.65 and 9,418,983.10 is: 14,128,474.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607,629.10 : 18,911,443.65 = 9,418,983.10 : x
  2. Step 2: Convert to fraction form
    12,607,629.10/18,911,443.65 = 9,418,983.10/x
  3. Step 3: Cross multiply
    12,607,629.10x = 18,911,443.65 × 9,418,983.10
  4. Step 4: Simplify right side
    12,607,629.10x = 178,126,568,135,952.28
  5. Step 5: Solve for x
    x = 178,126,568,135,952.28/12,607,629.10
  6. Step 6: Final answer
    x = 14,128,474.65

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1.5x scale

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.