Finding the Fourth Proportional to 71,534,544.62, 98,720,053.16 and 40,178,110.75
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Solution
The fourth proportional to 71,534,544.62, 98,720,053.16 and 40,178,110.75 is: 55,447,130.47
Step by Step Solution
- Step 1: Write the proportion equation
71,534,544.62 : 98,720,053.16 = 40,178,110.75 : x - Step 2: Convert to fraction form
71,534,544.62/98,720,053.16 = 40,178,110.75/x - Step 3: Cross multiply
71,534,544.62x = 98,720,053.16 × 40,178,110.75 - Step 4: Simplify right side
71,534,544.62x = 3,966,385,228,660,677 - Step 5: Solve for x
x = 3,966,385,228,660,677/71,534,544.62 - Step 6: Final answer
x = 55,447,130.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.