Finding the Fourth Proportional to 86,239,182,183.84, 129,243,142,979.64 and 67,117,882,191.12
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Solution
The fourth proportional to 86,239,182,183.84, 129,243,142,979.64 and 67,117,882,191.12 is: 100,586,831,007.11
Step by Step Solution
- Step 1: Write the proportion equation
86,239,182,183.84 : 129,243,142,979.64 = 67,117,882,191.12 : x - Step 2: Convert to fraction form
86,239,182,183.84/129,243,142,979.64 = 67,117,882,191.12/x - Step 3: Cross multiply
86,239,182,183.84x = 129,243,142,979.64 × 67,117,882,191.12 - Step 4: Simplify right side
86,239,182,183.84x = 8,674,526,044,517,556,027,392 - Step 5: Solve for x
x = 8,674,526,044,517,556,027,392/86,239,182,183.84 - Step 6: Final answer
x = 100,586,831,007.11
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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.