Home / 30,341,485.50-45,512,272.05-12,390,589.50

Finding the Fourth Proportional to 30,341,485.50, 45,512,272.05 and 12,390,589.50

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Solution

The fourth proportional to 30,341,485.50, 45,512,272.05 and 12,390,589.50 is: 18,585,902.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,485.50 : 45,512,272.05 = 12,390,589.50 : x
  2. Step 2: Convert to fraction form
    30,341,485.50/45,512,272.05 = 12,390,589.50/x
  3. Step 3: Cross multiply
    30,341,485.50x = 45,512,272.05 × 12,390,589.50
  4. Step 4: Simplify right side
    30,341,485.50x = 563,923,880,183,873.50
  5. Step 5: Solve for x
    x = 563,923,880,183,873.50/30,341,485.50
  6. Step 6: Final answer
    x = 18,585,902.14

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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.