Finding the Fourth Proportional to 27,776,308.19, 38,331,611.91 and 15,386,591.43
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Solution
The fourth proportional to 27,776,308.19, 38,331,611.91 and 15,386,591.43 is: 21,233,666.02
Step by Step Solution
- Step 1: Write the proportion equation
27,776,308.19 : 38,331,611.91 = 15,386,591.43 : x - Step 2: Convert to fraction form
27,776,308.19/38,331,611.91 = 15,386,591.43/x - Step 3: Cross multiply
27,776,308.19x = 38,331,611.91 × 15,386,591.43 - Step 4: Simplify right side
27,776,308.19x = 589,792,851,312,491.88 - Step 5: Solve for x
x = 589,792,851,312,491.88/27,776,308.19 - Step 6: Final answer
x = 21,233,666.02
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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.