Finding the Fourth Proportional to 30,655,486.13, 42,305,592.44 and 16,717,604.02
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Solution
The fourth proportional to 30,655,486.13, 42,305,592.44 and 16,717,604.02 is: 23,070,850.66
Step by Step Solution
- Step 1: Write the proportion equation
30,655,486.13 : 42,305,592.44 = 16,717,604.02 : x - Step 2: Convert to fraction form
30,655,486.13/42,305,592.44 = 16,717,604.02/x - Step 3: Cross multiply
30,655,486.13x = 42,305,592.44 × 16,717,604.02 - Step 4: Simplify right side
30,655,486.13x = 707,248,142,370,398 - Step 5: Solve for x
x = 707,248,142,370,398/30,655,486.13 - Step 6: Final answer
x = 23,070,850.66
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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.