Home / 28,408,712.88-39,204,025.20-15,355,929

Finding the Fourth Proportional to 28,408,712.88, 39,204,025.20 and 15,355,929

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Solution

The fourth proportional to 28,408,712.88, 39,204,025.20 and 15,355,929 is: 21,191,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408,712.88 : 39,204,025.20 = 15,355,929 : x
  2. Step 2: Convert to fraction form
    28,408,712.88/39,204,025.20 = 15,355,929/x
  3. Step 3: Cross multiply
    28,408,712.88x = 39,204,025.20 × 15,355,929
  4. Step 4: Simplify right side
    28,408,712.88x = 602,014,227,485,410.88
  5. Step 5: Solve for x
    x = 602,014,227,485,410.88/28,408,712.88
  6. Step 6: Final answer
    x = 21,191,182.79

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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.