Finding the Fourth Proportional to 20,078,431.62, 27,710,597.62 and 11,929,669.62
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Solution
The fourth proportional to 20,078,431.62, 27,710,597.62 and 11,929,669.62 is: 16,464,347.46
Step by Step Solution
- Step 1: Write the proportion equation
20,078,431.62 : 27,710,597.62 = 11,929,669.62 : x - Step 2: Convert to fraction form
20,078,431.62/27,710,597.62 = 11,929,669.62/x - Step 3: Cross multiply
20,078,431.62x = 27,710,597.62 × 11,929,669.62 - Step 4: Simplify right side
20,078,431.62x = 330,578,274,579,358.31 - Step 5: Solve for x
x = 330,578,274,579,358.31/20,078,431.62 - Step 6: Final answer
x = 16,464,347.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.