Home / 639,013,749,748.40-881,866,694,614.72-353,872,269,844.40

Finding the Fourth Proportional to 639,013,749,748.40, 881,866,694,614.72 and 353,872,269,844.40

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Solution

The fourth proportional to 639,013,749,748.40, 881,866,694,614.72 and 353,872,269,844.40 is: 488,359,083,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,013,749,748.40 : 881,866,694,614.72 = 353,872,269,844.40 : x
  2. Step 2: Convert to fraction form
    639,013,749,748.40/881,866,694,614.72 = 353,872,269,844.40/x
  3. Step 3: Cross multiply
    639,013,749,748.40x = 881,866,694,614.72 × 353,872,269,844.40
  4. Step 4: Simplify right side
    639,013,749,748.40x = 312,068,168,923,489,308,246,016
  5. Step 5: Solve for x
    x = 312,068,168,923,489,308,246,016/639,013,749,748.40
  6. Step 6: Final answer
    x = 488,359,083,112.63

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.