Finding the Fourth Proportional to 93,431,026.28, 128,938,504.16 and 53,738,493.53
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Solution
The fourth proportional to 93,431,026.28, 128,938,504.16 and 53,738,493.53 is: 74,161,242.22
Step by Step Solution
- Step 1: Write the proportion equation
93,431,026.28 : 128,938,504.16 = 53,738,493.53 : x - Step 2: Convert to fraction form
93,431,026.28/128,938,504.16 = 53,738,493.53/x - Step 3: Cross multiply
93,431,026.28x = 128,938,504.16 × 53,738,493.53 - Step 4: Simplify right side
93,431,026.28x = 6,928,960,971,059,691 - Step 5: Solve for x
x = 6,928,960,971,059,691/93,431,026.28 - Step 6: Final answer
x = 74,161,242.22
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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.