Finding the Fourth Proportional to 86,748,979.68, 119,731,214.79 and 58,880,670.57
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Solution
The fourth proportional to 86,748,979.68, 119,731,214.79 and 58,880,670.57 is: 81,267,286.84
Step by Step Solution
- Step 1: Write the proportion equation
86,748,979.68 : 119,731,214.79 = 58,880,670.57 : x - Step 2: Convert to fraction form
86,748,979.68/119,731,214.79 = 58,880,670.57/x - Step 3: Cross multiply
86,748,979.68x = 119,731,214.79 × 58,880,670.57 - Step 4: Simplify right side
86,748,979.68x = 7,049,854,214,995,902 - Step 5: Solve for x
x = 7,049,854,214,995,902/86,748,979.68 - Step 6: Final answer
x = 81,267,286.84
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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.