Home / 871,279,991.40-1,306,919,987.10-866,178,157.80

Finding the Fourth Proportional to 871,279,991.40, 1,306,919,987.10 and 866,178,157.80

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Solution

The fourth proportional to 871,279,991.40, 1,306,919,987.10 and 866,178,157.80 is: 1,299,267,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,279,991.40 : 1,306,919,987.10 = 866,178,157.80 : x
  2. Step 2: Convert to fraction form
    871,279,991.40/1,306,919,987.10 = 866,178,157.80/x
  3. Step 3: Cross multiply
    871,279,991.40x = 1,306,919,987.10 × 866,178,157.80
  4. Step 4: Simplify right side
    871,279,991.40x = 1,132,025,546,818,277,632
  5. Step 5: Solve for x
    x = 1,132,025,546,818,277,632/871,279,991.40
  6. Step 6: Final answer
    x = 1,299,267,236.70

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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.