Finding the Fourth Proportional to 21,016,317.41, 29,001,860.00 and 12,320,281.74
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Solution
The fourth proportional to 21,016,317.41, 29,001,860.00 and 12,320,281.74 is: 17,001,603.06
Step by Step Solution
- Step 1: Write the proportion equation
21,016,317.41 : 29,001,860.00 = 12,320,281.74 : x - Step 2: Convert to fraction form
21,016,317.41/29,001,860.00 = 12,320,281.74/x - Step 3: Cross multiply
21,016,317.41x = 29,001,860.00 × 12,320,281.74 - Step 4: Simplify right side
21,016,317.41x = 357,311,086,346,694.62 - Step 5: Solve for x
x = 357,311,086,346,694.62/21,016,317.41 - Step 6: Final answer
x = 17,001,603.06
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1.5x scale
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.