Home / 138,686,625.36-208,043,701.56-51,271,056

Finding the Fourth Proportional to 138,686,625.36, 208,043,701.56 and 51,271,056

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Solution

The fourth proportional to 138,686,625.36, 208,043,701.56 and 51,271,056 is: 76,911,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,686,625.36 : 208,043,701.56 = 51,271,056 : x
  2. Step 2: Convert to fraction form
    138,686,625.36/208,043,701.56 = 51,271,056/x
  3. Step 3: Cross multiply
    138,686,625.36x = 208,043,701.56 × 51,271,056
  4. Step 4: Simplify right side
    138,686,625.36x = 10,666,620,273,130,048
  5. Step 5: Solve for x
    x = 10,666,620,273,130,048/138,686,625.36
  6. Step 6: Final answer
    x = 76,911,672.24

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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.