Home / 871,279,940.40-1,306,919,910.60-866,178,106.80

Finding the Fourth Proportional to 871,279,940.40, 1,306,919,910.60 and 866,178,106.80

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Solution

The fourth proportional to 871,279,940.40, 1,306,919,910.60 and 866,178,106.80 is: 1,299,267,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,279,940.40 : 1,306,919,910.60 = 866,178,106.80 : x
  2. Step 2: Convert to fraction form
    871,279,940.40/1,306,919,910.60 = 866,178,106.80/x
  3. Step 3: Cross multiply
    871,279,940.40x = 1,306,919,910.60 × 866,178,106.80
  4. Step 4: Simplify right side
    871,279,940.40x = 1,132,025,413,902,733,056
  5. Step 5: Solve for x
    x = 1,132,025,413,902,733,056/871,279,940.40
  6. Step 6: Final answer
    x = 1,299,267,160.20

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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.