Finding the Fourth Proportional to 708,718,805.97, 1,063,129,290.57 and 272,019,490.80
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Solution
The fourth proportional to 708,718,805.97, 1,063,129,290.57 and 272,019,490.80 is: 408,048,842.28
Step by Step Solution
- Step 1: Write the proportion equation
708,718,805.97 : 1,063,129,290.57 = 272,019,490.80 : x - Step 2: Convert to fraction form
708,718,805.97/1,063,129,290.57 = 272,019,490.80/x - Step 3: Cross multiply
708,718,805.97x = 1,063,129,290.57 × 272,019,490.80 - Step 4: Simplify right side
708,718,805.97x = 289,191,888,275,416,640 - Step 5: Solve for x
x = 289,191,888,275,416,640/708,718,805.97 - Step 6: Final answer
x = 408,048,842.28
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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.