Home / 639,638,069.71-882,746,213.14-353,523,440.91

Finding the Fourth Proportional to 639,638,069.71, 882,746,213.14 and 353,523,440.91

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Solution

The fourth proportional to 639,638,069.71, 882,746,213.14 and 353,523,440.91 is: 487,887,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,638,069.71 : 882,746,213.14 = 353,523,440.91 : x
  2. Step 2: Convert to fraction form
    639,638,069.71/882,746,213.14 = 353,523,440.91/x
  3. Step 3: Cross multiply
    639,638,069.71x = 882,746,213.14 × 353,523,440.91
  4. Step 4: Simplify right side
    639,638,069.71x = 312,071,478,719,525,056
  5. Step 5: Solve for x
    x = 312,071,478,719,525,056/639,638,069.71
  6. Step 6: Final answer
    x = 487,887,593.78

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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.