Home / 2,115,579.15-2,919,499.22-1,210,161.15

Finding the Fourth Proportional to 2,115,579.15, 2,919,499.22 and 1,210,161.15

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Solution

The fourth proportional to 2,115,579.15, 2,919,499.22 and 1,210,161.15 is: 1,670,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,579.15 : 2,919,499.22 = 1,210,161.15 : x
  2. Step 2: Convert to fraction form
    2,115,579.15/2,919,499.22 = 1,210,161.15/x
  3. Step 3: Cross multiply
    2,115,579.15x = 2,919,499.22 × 1,210,161.15
  4. Step 4: Simplify right side
    2,115,579.15x = 3,533,064,536,524.71
  5. Step 5: Solve for x
    x = 3,533,064,536,524.71/2,115,579.15
  6. Step 6: Final answer
    x = 1,670,022.38

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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.