Home / 30,184,684.78-45,287,359.80-12,905,766.40

Finding the Fourth Proportional to 30,184,684.78, 45,287,359.80 and 12,905,766.40

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Solution

The fourth proportional to 30,184,684.78, 45,287,359.80 and 12,905,766.40 is: 19,363,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,184,684.78 : 45,287,359.80 = 12,905,766.40 : x
  2. Step 2: Convert to fraction form
    30,184,684.78/45,287,359.80 = 12,905,766.40/x
  3. Step 3: Cross multiply
    30,184,684.78x = 45,287,359.80 × 12,905,766.40
  4. Step 4: Simplify right side
    30,184,684.78x = 584,468,086,451,550.75
  5. Step 5: Solve for x
    x = 584,468,086,451,550.75/30,184,684.78
  6. Step 6: Final answer
    x = 19,363,067.42

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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.