Finding the Fourth Proportional to 12,254,248.99, 18,372,860.79 and 5,427,101.62
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Solution
The fourth proportional to 12,254,248.99, 18,372,860.79 and 5,427,101.62 is: 8,136,882.37
Step by Step Solution
- Step 1: Write the proportion equation
12,254,248.99 : 18,372,860.79 = 5,427,101.62 : x - Step 2: Convert to fraction form
12,254,248.99/18,372,860.79 = 5,427,101.62/x - Step 3: Cross multiply
12,254,248.99x = 18,372,860.79 × 5,427,101.62 - Step 4: Simplify right side
12,254,248.99x = 99,711,382,557,443.48 - Step 5: Solve for x
x = 99,711,382,557,443.48/12,254,248.99 - Step 6: Final answer
x = 8,136,882.37
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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.