Finding the Fourth Proportional to 20,236,173.61, 30,359,637.96 and 6,403,378.08
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Solution
The fourth proportional to 20,236,173.61, 30,359,637.96 and 6,403,378.08 is: 9,606,768.75
Step by Step Solution
- Step 1: Write the proportion equation
20,236,173.61 : 30,359,637.96 = 6,403,378.08 : x - Step 2: Convert to fraction form
20,236,173.61/30,359,637.96 = 6,403,378.08/x - Step 3: Cross multiply
20,236,173.61x = 30,359,637.96 × 6,403,378.08 - Step 4: Simplify right side
20,236,173.61x = 194,404,240,196,117.50 - Step 5: Solve for x
x = 194,404,240,196,117.50/20,236,173.61 - Step 6: Final answer
x = 9,606,768.75
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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.