Home / 85,524,325.32-128,286,485.50-39,452,563.20

Finding the Fourth Proportional to 85,524,325.32, 128,286,485.50 and 39,452,563.20

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Solution

The fourth proportional to 85,524,325.32, 128,286,485.50 and 39,452,563.20 is: 59,178,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524,325.32 : 128,286,485.50 = 39,452,563.20 : x
  2. Step 2: Convert to fraction form
    85,524,325.32/128,286,485.50 = 39,452,563.20/x
  3. Step 3: Cross multiply
    85,524,325.32x = 128,286,485.50 × 39,452,563.20
  4. Step 4: Simplify right side
    85,524,325.32x = 5,061,230,676,894,634
  5. Step 5: Solve for x
    x = 5,061,230,676,894,634/85,524,325.32
  6. Step 6: Final answer
    x = 59,178,843.66

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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.