Home / 645,205,209,215.84-890,378,659,234.90-352,230,132,028.04

Finding the Fourth Proportional to 645,205,209,215.84, 890,378,659,234.90 and 352,230,132,028.04

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Solution

The fourth proportional to 645,205,209,215.84, 890,378,659,234.90 and 352,230,132,028.04 is: 486,075,109,465.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,205,209,215.84 : 890,378,659,234.90 = 352,230,132,028.04 : x
  2. Step 2: Convert to fraction form
    645,205,209,215.84/890,378,659,234.90 = 352,230,132,028.04/x
  3. Step 3: Cross multiply
    645,205,209,215.84x = 890,378,659,234.90 × 352,230,132,028.04
  4. Step 4: Simplify right side
    645,205,209,215.84x = 313,618,192,697,258,045,079,552
  5. Step 5: Solve for x
    x = 313,618,192,697,258,045,079,552/645,205,209,215.84
  6. Step 6: Final answer
    x = 486,075,109,465.44

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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.