Home / 18,319,680.72-25,280,172.60-10,170,393.84

Finding the Fourth Proportional to 18,319,680.72, 25,280,172.60 and 10,170,393.84

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Solution

The fourth proportional to 18,319,680.72, 25,280,172.60 and 10,170,393.84 is: 14,034,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319,680.72 : 25,280,172.60 = 10,170,393.84 : x
  2. Step 2: Convert to fraction form
    18,319,680.72/25,280,172.60 = 10,170,393.84/x
  3. Step 3: Cross multiply
    18,319,680.72x = 25,280,172.60 × 10,170,393.84
  4. Step 4: Simplify right side
    18,319,680.72x = 257,109,311,685,176.78
  5. Step 5: Solve for x
    x = 257,109,311,685,176.78/18,319,680.72
  6. Step 6: Final answer
    x = 14,034,595.67

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1.5x scale

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.