Finding the Fourth Proportional to 921,523,386.65, 1,382,133,743.69 and 396,751,208.27
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Solution
The fourth proportional to 921,523,386.65, 1,382,133,743.69 and 396,751,208.27 is: 595,061,656.32
Step by Step Solution
- Step 1: Write the proportion equation
921,523,386.65 : 1,382,133,743.69 = 396,751,208.27 : x - Step 2: Convert to fraction form
921,523,386.65/1,382,133,743.69 = 396,751,208.27/x - Step 3: Cross multiply
921,523,386.65x = 1,382,133,743.69 × 396,751,208.27 - Step 4: Simplify right side
921,523,386.65x = 548,363,232,790,851,520 - Step 5: Solve for x
x = 548,363,232,790,851,520/921,523,386.65 - Step 6: Final answer
x = 595,061,656.32
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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.