Finding the Fourth Proportional to 27,884,965.68, 38,484,861.12 and 15,661,822.32
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Solution
The fourth proportional to 27,884,965.68, 38,484,861.12 and 15,661,822.32 is: 21,615,341.54
Step by Step Solution
- Step 1: Write the proportion equation
27,884,965.68 : 38,484,861.12 = 15,661,822.32 : x - Step 2: Convert to fraction form
27,884,965.68/38,484,861.12 = 15,661,822.32/x - Step 3: Cross multiply
27,884,965.68x = 38,484,861.12 × 15,661,822.32 - Step 4: Simplify right side
27,884,965.68x = 602,743,056,871,316.12 - Step 5: Solve for x
x = 602,743,056,871,316.12/27,884,965.68 - Step 6: Final answer
x = 21,615,341.54
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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.