Home / 980,236,345.20-1,470,788,720.94-513,786,915.18

Finding the Fourth Proportional to 980,236,345.20, 1,470,788,720.94 and 513,786,915.18

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Solution

The fourth proportional to 980,236,345.20, 1,470,788,720.94 and 513,786,915.18 is: 770,907,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,236,345.20 : 1,470,788,720.94 = 513,786,915.18 : x
  2. Step 2: Convert to fraction form
    980,236,345.20/1,470,788,720.94 = 513,786,915.18/x
  3. Step 3: Cross multiply
    980,236,345.20x = 1,470,788,720.94 × 513,786,915.18
  4. Step 4: Simplify right side
    980,236,345.20x = 755,671,999,813,300,480
  5. Step 5: Solve for x
    x = 755,671,999,813,300,480/980,236,345.20
  6. Step 6: Final answer
    x = 770,907,958.59

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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.