Home / 431,238,745.53-646,599,040.72-168,610,407.93

Finding the Fourth Proportional to 431,238,745.53, 646,599,040.72 and 168,610,407.93

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Solution

The fourth proportional to 431,238,745.53, 646,599,040.72 and 168,610,407.93 is: 252,814,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,238,745.53 : 646,599,040.72 = 168,610,407.93 : x
  2. Step 2: Convert to fraction form
    431,238,745.53/646,599,040.72 = 168,610,407.93/x
  3. Step 3: Cross multiply
    431,238,745.53x = 646,599,040.72 × 168,610,407.93
  4. Step 4: Simplify right side
    431,238,745.53x = 109,023,328,022,524,352
  5. Step 5: Solve for x
    x = 109,023,328,022,524,352/431,238,745.53
  6. Step 6: Final answer
    x = 252,814,314.93

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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.