Home / 138,686,627.61-208,043,704.94-51,271,058.25

Finding the Fourth Proportional to 138,686,627.61, 208,043,704.94 and 51,271,058.25

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Solution

The fourth proportional to 138,686,627.61, 208,043,704.94 and 51,271,058.25 is: 76,911,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,686,627.61 : 208,043,704.94 = 51,271,058.25 : x
  2. Step 2: Convert to fraction form
    138,686,627.61/208,043,704.94 = 51,271,058.25/x
  3. Step 3: Cross multiply
    138,686,627.61x = 208,043,704.94 × 51,271,058.25
  4. Step 4: Simplify right side
    138,686,627.61x = 10,666,620,914,268,198
  5. Step 5: Solve for x
    x = 10,666,620,914,268,198/138,686,627.61
  6. Step 6: Final answer
    x = 76,911,675.61

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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.