Home / 30,328,021.20-45,492,226.20-12,133,736.40

Finding the Fourth Proportional to 30,328,021.20, 45,492,226.20 and 12,133,736.40

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Solution

The fourth proportional to 30,328,021.20, 45,492,226.20 and 12,133,736.40 is: 18,200,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328,021.20 : 45,492,226.20 = 12,133,736.40 : x
  2. Step 2: Convert to fraction form
    30,328,021.20/45,492,226.20 = 12,133,736.40/x
  3. Step 3: Cross multiply
    30,328,021.20x = 45,492,226.20 × 12,133,736.40
  4. Step 4: Simplify right side
    30,328,021.20x = 551,990,680,959,973.75
  5. Step 5: Solve for x
    x = 551,990,680,959,973.75/30,328,021.20
  6. Step 6: Final answer
    x = 18,200,682.38

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1.5x scale

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.