Home / 57,084,978.08-78,777,846.48-30,979,721.36

Finding the Fourth Proportional to 57,084,978.08, 78,777,846.48 and 30,979,721.36

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Solution

The fourth proportional to 57,084,978.08, 78,777,846.48 and 30,979,721.36 is: 42,752,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084,978.08 : 78,777,846.48 = 30,979,721.36 : x
  2. Step 2: Convert to fraction form
    57,084,978.08/78,777,846.48 = 30,979,721.36/x
  3. Step 3: Cross multiply
    57,084,978.08x = 78,777,846.48 × 30,979,721.36
  4. Step 4: Simplify right side
    57,084,978.08x = 2,440,515,733,291,257
  5. Step 5: Solve for x
    x = 2,440,515,733,291,257/57,084,978.08
  6. Step 6: Final answer
    x = 42,752,328.46

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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.