Finding the Fourth Proportional to 21,735,015.12, 29,994,995.52 and 11,945,281.68
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Solution
The fourth proportional to 21,735,015.12, 29,994,995.52 and 11,945,281.68 is: 16,484,859.50
Step by Step Solution
- Step 1: Write the proportion equation
21,735,015.12 : 29,994,995.52 = 11,945,281.68 : x - Step 2: Convert to fraction form
21,735,015.12/29,994,995.52 = 11,945,281.68/x - Step 3: Cross multiply
21,735,015.12x = 29,994,995.52 × 11,945,281.68 - Step 4: Simplify right side
21,735,015.12x = 358,298,670,476,738.06 - Step 5: Solve for x
x = 358,298,670,476,738.06/21,735,015.12 - Step 6: Final answer
x = 16,484,859.50
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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.