Finding the Fourth Proportional to 7,218,834,720.88, 10,820,609,707.42 and 2,428,176,985.66
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Solution
The fourth proportional to 7,218,834,720.88, 10,820,609,707.42 and 2,428,176,985.66 is: 3,639,694,836.95
Step by Step Solution
- Step 1: Write the proportion equation
7,218,834,720.88 : 10,820,609,707.42 = 2,428,176,985.66 : x - Step 2: Convert to fraction form
7,218,834,720.88/10,820,609,707.42 = 2,428,176,985.66/x - Step 3: Cross multiply
7,218,834,720.88x = 10,820,609,707.42 × 2,428,176,985.66 - Step 4: Simplify right side
7,218,834,720.88x = 26,274,355,462,366,429,184 - Step 5: Solve for x
x = 26,274,355,462,366,429,184/7,218,834,720.88 - Step 6: Final answer
x = 3,639,694,836.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.