Finding the Fourth Proportional to 154,588,982.76, 213,331,538.70 and 84,973,623.48
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Solution
The fourth proportional to 154,588,982.76, 213,331,538.70 and 84,973,623.48 is: 117,262,909.18
Step by Step Solution
- Step 1: Write the proportion equation
154,588,982.76 : 213,331,538.70 = 84,973,623.48 : x - Step 2: Convert to fraction form
154,588,982.76/213,331,538.70 = 84,973,623.48/x - Step 3: Cross multiply
154,588,982.76x = 213,331,538.70 × 84,973,623.48 - Step 4: Simplify right side
154,588,982.76x = 18,127,553,845,902,848 - Step 5: Solve for x
x = 18,127,553,845,902,848/154,588,982.76 - Step 6: Final answer
x = 117,262,909.18
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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.