Finding the Fourth Proportional to 6,245,689,131.81, 8,618,999,987.97 and 3,387,824,191.13
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Solution
The fourth proportional to 6,245,689,131.81, 8,618,999,987.97 and 3,387,824,191.13 is: 4,675,169,712.47
Step by Step Solution
- Step 1: Write the proportion equation
6,245,689,131.81 : 8,618,999,987.97 = 3,387,824,191.13 : x - Step 2: Convert to fraction form
6,245,689,131.81/8,618,999,987.97 = 3,387,824,191.13/x - Step 3: Cross multiply
6,245,689,131.81x = 8,618,999,987.97 × 3,387,824,191.13 - Step 4: Simplify right side
6,245,689,131.81x = 29,199,656,662,550,847,488 - Step 5: Solve for x
x = 29,199,656,662,550,847,488/6,245,689,131.81 - Step 6: Final answer
x = 4,675,169,712.47
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1.5x scale
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.