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Finding the Fourth Proportional to 210,450,636,000.21, 315,675,954,000.30 and 210,450,636,000.21

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Solution

The fourth proportional to 210,450,636,000.21, 315,675,954,000.30 and 210,450,636,000.21 is: 315,675,954,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,450,636,000.21 : 315,675,954,000.30 = 210,450,636,000.21 : x
  2. Step 2: Convert to fraction form
    210,450,636,000.21/315,675,954,000.30 = 210,450,636,000.21/x
  3. Step 3: Cross multiply
    210,450,636,000.21x = 315,675,954,000.30 × 210,450,636,000.21
  4. Step 4: Simplify right side
    210,450,636,000.21x = 66,434,205,289,336,163,794,944
  5. Step 5: Solve for x
    x = 66,434,205,289,336,163,794,944/210,450,636,000.21
  6. Step 6: Final answer
    x = 315,675,954,000.30

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1.5x scale

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.