Home / 320,487,749.78-442,273,094.61-173,810,033.78

Finding the Fourth Proportional to 320,487,749.78, 442,273,094.61 and 173,810,033.78

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Solution

The fourth proportional to 320,487,749.78, 442,273,094.61 and 173,810,033.78 is: 239,857,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,487,749.78 : 442,273,094.61 = 173,810,033.78 : x
  2. Step 2: Convert to fraction form
    320,487,749.78/442,273,094.61 = 173,810,033.78/x
  3. Step 3: Cross multiply
    320,487,749.78x = 442,273,094.61 × 173,810,033.78
  4. Step 4: Simplify right side
    320,487,749.78x = 76,871,501,514,149,232
  5. Step 5: Solve for x
    x = 76,871,501,514,149,232/320,487,749.78
  6. Step 6: Final answer
    x = 239,857,846.57

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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.