Home / 247,072,389.48-340,958,858.22-137,064,102.48

Finding the Fourth Proportional to 247,072,389.48, 340,958,858.22 and 137,064,102.48

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Solution

The fourth proportional to 247,072,389.48, 340,958,858.22 and 137,064,102.48 is: 189,147,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,072,389.48 : 340,958,858.22 = 137,064,102.48 : x
  2. Step 2: Convert to fraction form
    247,072,389.48/340,958,858.22 = 137,064,102.48/x
  3. Step 3: Cross multiply
    247,072,389.48x = 340,958,858.22 × 137,064,102.48
  4. Step 4: Simplify right side
    247,072,389.48x = 46,733,219,884,529,872
  5. Step 5: Solve for x
    x = 46,733,219,884,529,872/247,072,389.48
  6. Step 6: Final answer
    x = 189,147,884.89

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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.