Finding the Fourth Proportional to 882,479,282.32, 1,321,996,854.84 and 687,477,638.08
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Solution
The fourth proportional to 882,479,282.32, 1,321,996,854.84 and 687,477,638.08 is: 1,029,874,914.37
Step by Step Solution
- Step 1: Write the proportion equation
882,479,282.32 : 1,321,996,854.84 = 687,477,638.08 : x - Step 2: Convert to fraction form
882,479,282.32/1,321,996,854.84 = 687,477,638.08/x - Step 3: Cross multiply
882,479,282.32x = 1,321,996,854.84 × 687,477,638.08 - Step 4: Simplify right side
882,479,282.32x = 908,843,275,314,591,872 - Step 5: Solve for x
x = 908,843,275,314,591,872/882,479,282.32 - Step 6: Final answer
x = 1,029,874,914.37
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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.