Finding the Fourth Proportional to 75,206,965.12, 112,810,448.72 and 49,641,994.24
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Solution
The fourth proportional to 75,206,965.12, 112,810,448.72 and 49,641,994.24 is: 74,462,992.05
Step by Step Solution
- Step 1: Write the proportion equation
75,206,965.12 : 112,810,448.72 = 49,641,994.24 : x - Step 2: Convert to fraction form
75,206,965.12/112,810,448.72 = 49,641,994.24/x - Step 3: Cross multiply
75,206,965.12x = 112,810,448.72 × 49,641,994.24 - Step 4: Simplify right side
75,206,965.12x = 5,600,135,645,570,056 - Step 5: Solve for x
x = 5,600,135,645,570,056/75,206,965.12 - Step 6: Final answer
x = 74,462,992.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.