Finding the Fourth Proportional to 12,643,249,611,511, 17,447,684,462,194 and 7,162,351,419,189
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Solution
The fourth proportional to 12,643,249,611,511, 17,447,684,462,194 and 7,162,351,419,189 is: 9,884,044,957,522.77
Step by Step Solution
- Step 1: Write the proportion equation
12,643,249,611,511 : 17,447,684,462,194 = 7,162,351,419,189 : x - Step 2: Convert to fraction form
12,643,249,611,511/17,447,684,462,194 = 7,162,351,419,189/x - Step 3: Cross multiply
12,643,249,611,511x = 17,447,684,462,194 × 7,162,351,419,189 - Step 4: Simplify right side
12,643,249,611,511x = 124,966,447,569,357,059,680,894,976 - Step 5: Solve for x
x = 124,966,447,569,357,059,680,894,976/12,643,249,611,511 - Step 6: Final answer
x = 9,884,044,957,522.77
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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.