Finding the Fourth Proportional to 75,672,731.84, 104,428,368.12 and 40,865,419.44
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Solution
The fourth proportional to 75,672,731.84, 104,428,368.12 and 40,865,419.44 is: 56,394,277.84
Step by Step Solution
- Step 1: Write the proportion equation
75,672,731.84 : 104,428,368.12 = 40,865,419.44 : x - Step 2: Convert to fraction form
75,672,731.84/104,428,368.12 = 40,865,419.44/x - Step 3: Cross multiply
75,672,731.84x = 104,428,368.12 × 40,865,419.44 - Step 4: Simplify right side
75,672,731.84x = 4,267,509,064,658,524 - Step 5: Solve for x
x = 4,267,509,064,658,524/75,672,731.84 - Step 6: Final answer
x = 56,394,277.84
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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.