Finding the Fourth Proportional to 19,418,553.10, 29,127,829.65 and 8,081,145.10
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Solution
The fourth proportional to 19,418,553.10, 29,127,829.65 and 8,081,145.10 is: 12,121,717.65
Step by Step Solution
- Step 1: Write the proportion equation
19,418,553.10 : 29,127,829.65 = 8,081,145.10 : x - Step 2: Convert to fraction form
19,418,553.10/29,127,829.65 = 8,081,145.10/x - Step 3: Cross multiply
19,418,553.10x = 29,127,829.65 × 8,081,145.10 - Step 4: Simplify right side
19,418,553.10x = 235,386,217,849,732.19 - Step 5: Solve for x
x = 235,386,217,849,732.19/19,418,553.10 - Step 6: Final answer
x = 12,121,717.65
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1.5x scale
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.