Home / 101,143,672.68-139,544,100.36-65,845,405.20

Finding the Fourth Proportional to 101,143,672.68, 139,544,100.36 and 65,845,405.20

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Solution

The fourth proportional to 101,143,672.68, 139,544,100.36 and 65,845,405.20 is: 90,844,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,143,672.68 : 139,544,100.36 = 65,845,405.20 : x
  2. Step 2: Convert to fraction form
    101,143,672.68/139,544,100.36 = 65,845,405.20/x
  3. Step 3: Cross multiply
    101,143,672.68x = 139,544,100.36 × 65,845,405.20
  4. Step 4: Simplify right side
    101,143,672.68x = 9,188,337,831,473,668
  5. Step 5: Solve for x
    x = 9,188,337,831,473,668/101,143,672.68
  6. Step 6: Final answer
    x = 90,844,415.55

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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.