Finding the Fourth Proportional to 3,895,894,560.81, 5,376,190,459.71 and 2,111,709,706.87
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Solution
The fourth proportional to 3,895,894,560.81, 5,376,190,459.71 and 2,111,709,706.87 is: 2,914,081,323.95
Step by Step Solution
- Step 1: Write the proportion equation
3,895,894,560.81 : 5,376,190,459.71 = 2,111,709,706.87 : x - Step 2: Convert to fraction form
3,895,894,560.81/5,376,190,459.71 = 2,111,709,706.87/x - Step 3: Cross multiply
3,895,894,560.81x = 5,376,190,459.71 × 2,111,709,706.87 - Step 4: Simplify right side
3,895,894,560.81x = 11,352,953,579,760,326,656 - Step 5: Solve for x
x = 11,352,953,579,760,326,656/3,895,894,560.81 - Step 6: Final answer
x = 2,914,081,323.95
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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.