Home / 639,397,103.90-959,095,655.85-432,772,843.10

Finding the Fourth Proportional to 639,397,103.90, 959,095,655.85 and 432,772,843.10

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Solution

The fourth proportional to 639,397,103.90, 959,095,655.85 and 432,772,843.10 is: 649,159,264.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,397,103.90 : 959,095,655.85 = 432,772,843.10 : x
  2. Step 2: Convert to fraction form
    639,397,103.90/959,095,655.85 = 432,772,843.10/x
  3. Step 3: Cross multiply
    639,397,103.90x = 959,095,655.85 × 432,772,843.10
  4. Step 4: Simplify right side
    639,397,103.90x = 415,070,553,787,063,680
  5. Step 5: Solve for x
    x = 415,070,553,787,063,680/639,397,103.90
  6. Step 6: Final answer
    x = 649,159,264.65

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Double scale
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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.