Finding the Fourth Proportional to 829,580,077.36, 1,244,555,431.08 and 312,015,005.92
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Solution
The fourth proportional to 829,580,077.36, 1,244,555,431.08 and 312,015,005.92 is: 468,092,208.09
Step by Step Solution
- Step 1: Write the proportion equation
829,580,077.36 : 1,244,555,431.08 = 312,015,005.92 : x - Step 2: Convert to fraction form
829,580,077.36/1,244,555,431.08 = 312,015,005.92/x - Step 3: Cross multiply
829,580,077.36x = 1,244,555,431.08 × 312,015,005.92 - Step 4: Simplify right side
829,580,077.36x = 388,319,970,196,194,368 - Step 5: Solve for x
x = 388,319,970,196,194,368/829,580,077.36 - Step 6: Final answer
x = 468,092,208.09
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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.