Home / 101,188,989.43-139,640,852.14-54,779,243.36

Finding the Fourth Proportional to 101,188,989.43, 139,640,852.14 and 54,779,243.36

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Solution

The fourth proportional to 101,188,989.43, 139,640,852.14 and 54,779,243.36 is: 75,595,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188,989.43 : 139,640,852.14 = 54,779,243.36 : x
  2. Step 2: Convert to fraction form
    101,188,989.43/139,640,852.14 = 54,779,243.36/x
  3. Step 3: Cross multiply
    101,188,989.43x = 139,640,852.14 × 54,779,243.36
  4. Step 4: Simplify right side
    101,188,989.43x = 7,649,420,221,539,683
  5. Step 5: Solve for x
    x = 7,649,420,221,539,683/101,188,989.43
  6. Step 6: Final answer
    x = 75,595,381.12

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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.