Home / 20,121,333.40-30,185,936.70-8,606,778.40

Finding the Fourth Proportional to 20,121,333.40, 30,185,936.70 and 8,606,778.40

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Solution

The fourth proportional to 20,121,333.40, 30,185,936.70 and 8,606,778.40 is: 12,911,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121,333.40 : 30,185,936.70 = 8,606,778.40 : x
  2. Step 2: Convert to fraction form
    20,121,333.40/30,185,936.70 = 8,606,778.40/x
  3. Step 3: Cross multiply
    20,121,333.40x = 30,185,936.70 × 8,606,778.40
  4. Step 4: Simplify right side
    20,121,333.40x = 259,803,667,973,327.28
  5. Step 5: Solve for x
    x = 259,803,667,973,327.28/20,121,333.40
  6. Step 6: Final answer
    x = 12,911,851.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.