Finding the Fourth Proportional to 1,211,125,695.48, 1,671,354,191.97 and 654,208,988.58
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Solution
The fourth proportional to 1,211,125,695.48, 1,671,354,191.97 and 654,208,988.58 is: 902,808,799.75
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,695.48 : 1,671,354,191.97 = 654,208,988.58 : x - Step 2: Convert to fraction form
1,211,125,695.48/1,671,354,191.97 = 654,208,988.58/x - Step 3: Cross multiply
1,211,125,695.48x = 1,671,354,191.97 × 654,208,988.58 - Step 4: Simplify right side
1,211,125,695.48x = 1,093,414,935,487,636,992 - Step 5: Solve for x
x = 1,093,414,935,487,636,992/1,211,125,695.48 - Step 6: Final answer
x = 902,808,799.75
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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.