Finding the Fourth Proportional to 71,505,296.64, 98,679,539.52 and 40,566,769.92
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Solution
The fourth proportional to 71,505,296.64, 98,679,539.52 and 40,566,769.92 is: 55,983,407.71
Step by Step Solution
- Step 1: Write the proportion equation
71,505,296.64 : 98,679,539.52 = 40,566,769.92 : x - Step 2: Convert to fraction form
71,505,296.64/98,679,539.52 = 40,566,769.92/x - Step 3: Cross multiply
71,505,296.64x = 98,679,539.52 × 40,566,769.92 - Step 4: Simplify right side
71,505,296.64x = 4,003,110,175,519,387 - Step 5: Solve for x
x = 4,003,110,175,519,387/71,505,296.64 - Step 6: Final answer
x = 55,983,407.71
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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.