Home / 639,528,506.34-959,384,268.30-196,908,636.70

Finding the Fourth Proportional to 639,528,506.34, 959,384,268.30 and 196,908,636.70

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Solution

The fourth proportional to 639,528,506.34, 959,384,268.30 and 196,908,636.70 is: 295,391,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528,506.34 : 959,384,268.30 = 196,908,636.70 : x
  2. Step 2: Convert to fraction form
    639,528,506.34/959,384,268.30 = 196,908,636.70/x
  3. Step 3: Cross multiply
    639,528,506.34x = 959,384,268.30 × 196,908,636.70
  4. Step 4: Simplify right side
    639,528,506.34x = 188,911,048,342,380,000
  5. Step 5: Solve for x
    x = 188,911,048,342,380,000/639,528,506.34
  6. Step 6: Final answer
    x = 295,391,130.29

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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.