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Finding the Fourth Proportional to 885,741,324.70, 1,328,611,987.05 and 656,158,812.70

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Solution

The fourth proportional to 885,741,324.70, 1,328,611,987.05 and 656,158,812.70 is: 984,238,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,741,324.70 : 1,328,611,987.05 = 656,158,812.70 : x
  2. Step 2: Convert to fraction form
    885,741,324.70/1,328,611,987.05 = 656,158,812.70/x
  3. Step 3: Cross multiply
    885,741,324.70x = 1,328,611,987.05 × 656,158,812.70
  4. Step 4: Simplify right side
    885,741,324.70x = 871,780,463,961,715,840
  5. Step 5: Solve for x
    x = 871,780,463,961,715,840/885,741,324.70
  6. Step 6: Final answer
    x = 984,238,219.05

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Double scale
Find fourth proportional to 885,741,325.70, 1,328,611,988.55 and 656,158,813.70
Similar ratio
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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.