Home / 1,257,389,413,784.40-1,886,084,120,676.60-691,208,328,190.80

Finding the Fourth Proportional to 1,257,389,413,784.40, 1,886,084,120,676.60 and 691,208,328,190.80

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Solution

The fourth proportional to 1,257,389,413,784.40, 1,886,084,120,676.60 and 691,208,328,190.80 is: 1,036,812,492,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,389,413,784.40 : 1,886,084,120,676.60 = 691,208,328,190.80 : x
  2. Step 2: Convert to fraction form
    1,257,389,413,784.40/1,886,084,120,676.60 = 691,208,328,190.80/x
  3. Step 3: Cross multiply
    1,257,389,413,784.40x = 1,886,084,120,676.60 × 691,208,328,190.80
  4. Step 4: Simplify right side
    1,257,389,413,784.40x = 1,303,677,051,880,087,933,157,376
  5. Step 5: Solve for x
    x = 1,303,677,051,880,087,933,157,376/1,257,389,413,784.40
  6. Step 6: Final answer
    x = 1,036,812,492,286.20

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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.