Home / 100,380,030.90-138,446,344.26-72,606,924.24

Finding the Fourth Proportional to 100,380,030.90, 138,446,344.26 and 72,606,924.24

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Solution

The fourth proportional to 100,380,030.90, 138,446,344.26 and 72,606,924.24 is: 100,141,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,380,030.90 : 138,446,344.26 = 72,606,924.24 : x
  2. Step 2: Convert to fraction form
    100,380,030.90/138,446,344.26 = 72,606,924.24/x
  3. Step 3: Cross multiply
    100,380,030.90x = 138,446,344.26 × 72,606,924.24
  4. Step 4: Simplify right side
    100,380,030.90x = 10,052,163,228,990,778
  5. Step 5: Solve for x
    x = 10,052,163,228,990,778/100,380,030.90
  6. Step 6: Final answer
    x = 100,141,065.30

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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.