Home / 15,134,423.87-20,886,166.29-8,519,438.81

Finding the Fourth Proportional to 15,134,423.87, 20,886,166.29 and 8,519,438.81

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Solution

The fourth proportional to 15,134,423.87, 20,886,166.29 and 8,519,438.81 is: 11,757,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134,423.87 : 20,886,166.29 = 8,519,438.81 : x
  2. Step 2: Convert to fraction form
    15,134,423.87/20,886,166.29 = 8,519,438.81/x
  3. Step 3: Cross multiply
    15,134,423.87x = 20,886,166.29 × 8,519,438.81
  4. Step 4: Simplify right side
    15,134,423.87x = 177,938,415,683,139.72
  5. Step 5: Solve for x
    x = 177,938,415,683,139.72/15,134,423.87
  6. Step 6: Final answer
    x = 11,757,197.84

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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.