Home / 645,205,209,213.10-890,378,659,231.30-352,230,132,025.47

Finding the Fourth Proportional to 645,205,209,213.10, 890,378,659,231.30 and 352,230,132,025.47

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Solution

The fourth proportional to 645,205,209,213.10, 890,378,659,231.30 and 352,230,132,025.47 is: 486,075,109,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,205,209,213.10 : 890,378,659,231.30 = 352,230,132,025.47 : x
  2. Step 2: Convert to fraction form
    645,205,209,213.10/890,378,659,231.30 = 352,230,132,025.47/x
  3. Step 3: Cross multiply
    645,205,209,213.10x = 890,378,659,231.30 × 352,230,132,025.47
  4. Step 4: Simplify right side
    645,205,209,213.10x = 313,618,192,693,701,745,049,600
  5. Step 5: Solve for x
    x = 313,618,192,693,701,745,049,600/645,205,209,213.10
  6. Step 6: Final answer
    x = 486,075,109,461.99

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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.