Home / 1,257,389,413,793.40-1,886,084,120,690.10-691,208,328,199.80

Finding the Fourth Proportional to 1,257,389,413,793.40, 1,886,084,120,690.10 and 691,208,328,199.80

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Solution

The fourth proportional to 1,257,389,413,793.40, 1,886,084,120,690.10 and 691,208,328,199.80 is: 1,036,812,492,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,389,413,793.40 : 1,886,084,120,690.10 = 691,208,328,199.80 : x
  2. Step 2: Convert to fraction form
    1,257,389,413,793.40/1,886,084,120,690.10 = 691,208,328,199.80/x
  3. Step 3: Cross multiply
    1,257,389,413,793.40x = 1,886,084,120,690.10 × 691,208,328,199.80
  4. Step 4: Simplify right side
    1,257,389,413,793.40x = 1,303,677,051,906,394,070,974,464
  5. Step 5: Solve for x
    x = 1,303,677,051,906,394,070,974,464/1,257,389,413,793.40
  6. Step 6: Final answer
    x = 1,036,812,492,299.70

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Double scale
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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.