Finding the Fourth Proportional to 216,878,975.96, 299,293,341.39 and 117,759,915.05
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Solution
The fourth proportional to 216,878,975.96, 299,293,341.39 and 117,759,915.05 is: 162,508,875.29
Step by Step Solution
- Step 1: Write the proportion equation
216,878,975.96 : 299,293,341.39 = 117,759,915.05 : x - Step 2: Convert to fraction form
216,878,975.96/299,293,341.39 = 117,759,915.05/x - Step 3: Cross multiply
216,878,975.96x = 299,293,341.39 × 117,759,915.05 - Step 4: Simplify right side
216,878,975.96x = 35,244,758,455,620,580 - Step 5: Solve for x
x = 35,244,758,455,620,580/216,878,975.96 - Step 6: Final answer
x = 162,508,875.29
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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.