Finding the Fourth Proportional to 1,211,125,706.73, 1,671,354,207.50 and 654,208,999.83
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Solution
The fourth proportional to 1,211,125,706.73, 1,671,354,207.50 and 654,208,999.83 is: 902,808,815.28
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,706.73 : 1,671,354,207.50 = 654,208,999.83 : x - Step 2: Convert to fraction form
1,211,125,706.73/1,671,354,207.50 = 654,208,999.83/x - Step 3: Cross multiply
1,211,125,706.73x = 1,671,354,207.50 × 654,208,999.83 - Step 4: Simplify right side
1,211,125,706.73x = 1,093,414,964,446,966,272 - Step 5: Solve for x
x = 1,093,414,964,446,966,272/1,211,125,706.73 - Step 6: Final answer
x = 902,808,815.28
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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.