Finding the Fourth Proportional to 136,987,764.94, 205,459,774.17 and 39,920,767.50
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Solution
The fourth proportional to 136,987,764.94, 205,459,774.17 and 39,920,767.50 is: 59,874,776.98
Step by Step Solution
- Step 1: Write the proportion equation
136,987,764.94 : 205,459,774.17 = 39,920,767.50 : x - Step 2: Convert to fraction form
136,987,764.94/205,459,774.17 = 39,920,767.50/x - Step 3: Cross multiply
136,987,764.94x = 205,459,774.17 × 39,920,767.50 - Step 4: Simplify right side
136,987,764.94x = 8,202,111,875,243,075 - Step 5: Solve for x
x = 8,202,111,875,243,075/136,987,764.94 - Step 6: Final answer
x = 59,874,776.98
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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.