Home / 189,953,640-284,979,584.88-111,236,625.72

Finding the Fourth Proportional to 189,953,640, 284,979,584.88 and 111,236,625.72

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Solution

The fourth proportional to 189,953,640, 284,979,584.88 and 111,236,625.72 is: 166,883,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,953,640 : 284,979,584.88 = 111,236,625.72 : x
  2. Step 2: Convert to fraction form
    189,953,640/284,979,584.88 = 111,236,625.72/x
  3. Step 3: Cross multiply
    189,953,640x = 284,979,584.88 × 111,236,625.72
  4. Step 4: Simplify right side
    189,953,640x = 31,700,167,421,137,532
  5. Step 5: Solve for x
    x = 31,700,167,421,137,532/189,953,640
  6. Step 6: Final answer
    x = 166,883,706.05

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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.