Finding the Fourth Proportional to 704,543,013.23, 972,211,472.09 and 386,986,847.94
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Solution
The fourth proportional to 704,543,013.23, 972,211,472.09 and 386,986,847.94 is: 534,010,054.82
Step by Step Solution
- Step 1: Write the proportion equation
704,543,013.23 : 972,211,472.09 = 386,986,847.94 : x - Step 2: Convert to fraction form
704,543,013.23/972,211,472.09 = 386,986,847.94/x - Step 3: Cross multiply
704,543,013.23x = 972,211,472.09 × 386,986,847.94 - Step 4: Simplify right side
704,543,013.23x = 376,233,053,113,281,472 - Step 5: Solve for x
x = 376,233,053,113,281,472/704,543,013.23 - Step 6: Final answer
x = 534,010,054.82
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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.