Finding the Fourth Proportional to 138,392,143.48, 207,690,412.37 and 65,609,179.88
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Solution
The fourth proportional to 138,392,143.48, 207,690,412.37 and 65,609,179.88 is: 98,462,219.61
Step by Step Solution
- Step 1: Write the proportion equation
138,392,143.48 : 207,690,412.37 = 65,609,179.88 : x - Step 2: Convert to fraction form
138,392,143.48/207,690,412.37 = 65,609,179.88/x - Step 3: Cross multiply
138,392,143.48x = 207,690,412.37 × 65,609,179.88 - Step 4: Simplify right side
138,392,143.48x = 13,626,397,623,168,210 - Step 5: Solve for x
x = 13,626,397,623,168,210/138,392,143.48 - Step 6: Final answer
x = 98,462,219.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.