Home / 639,528,787.79-959,384,690.49-196,908,918.02

Finding the Fourth Proportional to 639,528,787.79, 959,384,690.49 and 196,908,918.02

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Solution

The fourth proportional to 639,528,787.79, 959,384,690.49 and 196,908,918.02 is: 295,391,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528,787.79 : 959,384,690.49 = 196,908,918.02 : x
  2. Step 2: Convert to fraction form
    639,528,787.79/959,384,690.49 = 196,908,918.02/x
  3. Step 3: Cross multiply
    639,528,787.79x = 959,384,690.49 × 196,908,918.02
  4. Step 4: Simplify right side
    639,528,787.79x = 188,911,401,363,556,992
  5. Step 5: Solve for x
    x = 188,911,401,363,556,992/639,528,787.79
  6. Step 6: Final answer
    x = 295,391,552.30

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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.