Finding the Fourth Proportional to 75,149,647.62, 103,645,028.41 and 52,896,300.54
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Solution
The fourth proportional to 75,149,647.62, 103,645,028.41 and 52,896,300.54 is: 72,953,616.50
Step by Step Solution
- Step 1: Write the proportion equation
75,149,647.62 : 103,645,028.41 = 52,896,300.54 : x - Step 2: Convert to fraction form
75,149,647.62/103,645,028.41 = 52,896,300.54/x - Step 3: Cross multiply
75,149,647.62x = 103,645,028.41 × 52,896,300.54 - Step 4: Simplify right side
75,149,647.62x = 5,482,438,572,252,198 - Step 5: Solve for x
x = 5,482,438,572,252,198/75,149,647.62 - Step 6: Final answer
x = 72,953,616.50
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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.