Finding the Fourth Proportional to 19,966,318.38, 29,952,790.20 and 7,009,110.18
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Solution
The fourth proportional to 19,966,318.38, 29,952,790.20 and 7,009,110.18 is: 10,514,828.16
Step by Step Solution
- Step 1: Write the proportion equation
19,966,318.38 : 29,952,790.20 = 7,009,110.18 : x - Step 2: Convert to fraction form
19,966,318.38/29,952,790.20 = 7,009,110.18/x - Step 3: Cross multiply
19,966,318.38x = 29,952,790.20 × 7,009,110.18 - Step 4: Simplify right side
19,966,318.38x = 209,942,406,710,224.22 - Step 5: Solve for x
x = 209,942,406,710,224.22/19,966,318.38 - Step 6: Final answer
x = 10,514,828.16
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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.