Finding the Fourth Proportional to 377,006,486.58, 520,272,058.77 and 211,992,612.66
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Solution
The fourth proportional to 377,006,486.58, 520,272,058.77 and 211,992,612.66 is: 292,551,552.72
Step by Step Solution
- Step 1: Write the proportion equation
377,006,486.58 : 520,272,058.77 = 211,992,612.66 : x - Step 2: Convert to fraction form
377,006,486.58/520,272,058.77 = 211,992,612.66/x - Step 3: Cross multiply
377,006,486.58x = 520,272,058.77 × 211,992,612.66 - Step 4: Simplify right side
377,006,486.58x = 110,293,833,032,649,360 - Step 5: Solve for x
x = 110,293,833,032,649,360/377,006,486.58 - Step 6: Final answer
x = 292,551,552.72
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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.