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Finding the Fourth Proportional to 647,352,000.20, 971,028,000.30 and 371,002,680.20

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Solution

The fourth proportional to 647,352,000.20, 971,028,000.30 and 371,002,680.20 is: 556,504,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,352,000.20 : 971,028,000.30 = 371,002,680.20 : x
  2. Step 2: Convert to fraction form
    647,352,000.20/971,028,000.30 = 371,002,680.20/x
  3. Step 3: Cross multiply
    647,352,000.20x = 971,028,000.30 × 371,002,680.20
  4. Step 4: Simplify right side
    647,352,000.20x = 360,253,990,660,546,368
  5. Step 5: Solve for x
    x = 360,253,990,660,546,368/647,352,000.20
  6. Step 6: Final answer
    x = 556,504,020.30

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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.