Finding the Fourth Proportional to 21,719,964.37, 29,974,068.29 and 11,930,613.59
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Solution
The fourth proportional to 21,719,964.37, 29,974,068.29 and 11,930,613.59 is: 16,464,530.99
Step by Step Solution
- Step 1: Write the proportion equation
21,719,964.37 : 29,974,068.29 = 11,930,613.59 : x - Step 2: Convert to fraction form
21,719,964.37/29,974,068.29 = 11,930,613.59/x - Step 3: Cross multiply
21,719,964.37x = 29,974,068.29 × 11,930,613.59 - Step 4: Simplify right side
21,719,964.37x = 357,609,026,488,262.06 - Step 5: Solve for x
x = 357,609,026,488,262.06/21,719,964.37 - Step 6: Final answer
x = 16,464,530.99
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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.