Home / 15,016,627.61-20,723,750.72-8,400,821.40

Finding the Fourth Proportional to 15,016,627.61, 20,723,750.72 and 8,400,821.40

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Solution

The fourth proportional to 15,016,627.61, 20,723,750.72 and 8,400,821.40 is: 11,593,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016,627.61 : 20,723,750.72 = 8,400,821.40 : x
  2. Step 2: Convert to fraction form
    15,016,627.61/20,723,750.72 = 8,400,821.40/x
  3. Step 3: Cross multiply
    15,016,627.61x = 20,723,750.72 × 8,400,821.40
  4. Step 4: Simplify right side
    15,016,627.61x = 174,096,528,588,163.78
  5. Step 5: Solve for x
    x = 174,096,528,588,163.78/15,016,627.61
  6. Step 6: Final answer
    x = 11,593,583.67

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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.