Home / 12,547,917.05-18,821,486.78-3,572,469.05

Finding the Fourth Proportional to 12,547,917.05, 18,821,486.78 and 3,572,469.05

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Solution

The fourth proportional to 12,547,917.05, 18,821,486.78 and 3,572,469.05 is: 5,358,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,917.05 : 18,821,486.78 = 3,572,469.05 : x
  2. Step 2: Convert to fraction form
    12,547,917.05/18,821,486.78 = 3,572,469.05/x
  3. Step 3: Cross multiply
    12,547,917.05x = 18,821,486.78 × 3,572,469.05
  4. Step 4: Simplify right side
    12,547,917.05x = 67,239,178,978,671.80
  5. Step 5: Solve for x
    x = 67,239,178,978,671.80/12,547,917.05
  6. Step 6: Final answer
    x = 5,358,592.88

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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.