Home / 18,726,756.88-25,832,577.36-15,245,840.20

Finding the Fourth Proportional to 18,726,756.88, 25,832,577.36 and 15,245,840.20

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Solution

The fourth proportional to 18,726,756.88, 25,832,577.36 and 15,245,840.20 is: 21,030,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726,756.88 : 25,832,577.36 = 15,245,840.20 : x
  2. Step 2: Convert to fraction form
    18,726,756.88/25,832,577.36 = 15,245,840.20/x
  3. Step 3: Cross multiply
    18,726,756.88x = 25,832,577.36 × 15,245,840.20
  4. Step 4: Simplify right side
    18,726,756.88x = 393,839,346,384,697.81
  5. Step 5: Solve for x
    x = 393,839,346,384,697.81/18,726,756.88
  6. Step 6: Final answer
    x = 21,030,835.66

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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.