Finding the Fourth Proportional to 921,752,475.16, 1,272,116,992.26 and 564,757,168.96
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Solution
The fourth proportional to 921,752,475.16, 1,272,116,992.26 and 564,757,168.96 is: 779,425,290.95
Step by Step Solution
- Step 1: Write the proportion equation
921,752,475.16 : 1,272,116,992.26 = 564,757,168.96 : x - Step 2: Convert to fraction form
921,752,475.16/1,272,116,992.26 = 564,757,168.96/x - Step 3: Cross multiply
921,752,475.16x = 1,272,116,992.26 × 564,757,168.96 - Step 4: Simplify right side
921,752,475.16x = 718,437,191,134,667,904 - Step 5: Solve for x
x = 718,437,191,134,667,904/921,752,475.16 - Step 6: Final answer
x = 779,425,290.95
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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.