Home / 139,083,813.36-208,540,689.48-66,322,848.24

Finding the Fourth Proportional to 139,083,813.36, 208,540,689.48 and 66,322,848.24

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Solution

The fourth proportional to 139,083,813.36, 208,540,689.48 and 66,322,848.24 is: 99,443,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,083,813.36 : 208,540,689.48 = 66,322,848.24 : x
  2. Step 2: Convert to fraction form
    139,083,813.36/208,540,689.48 = 66,322,848.24/x
  3. Step 3: Cross multiply
    139,083,813.36x = 208,540,689.48 × 66,322,848.24
  4. Step 4: Simplify right side
    139,083,813.36x = 13,831,012,500,247,004
  5. Step 5: Solve for x
    x = 13,831,012,500,247,004/139,083,813.36
  6. Step 6: Final answer
    x = 99,443,725.09

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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.