Finding the Fourth Proportional to 155,418,711.98, 214,574,616.52 and 98,935,327.92
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Solution
The fourth proportional to 155,418,711.98, 214,574,616.52 and 98,935,327.92 is: 136,592,368.95
Step by Step Solution
- Step 1: Write the proportion equation
155,418,711.98 : 214,574,616.52 = 98,935,327.92 : x - Step 2: Convert to fraction form
155,418,711.98/214,574,616.52 = 98,935,327.92/x - Step 3: Cross multiply
155,418,711.98x = 214,574,616.52 × 98,935,327.92 - Step 4: Simplify right side
155,418,711.98x = 21,229,010,048,467,112 - Step 5: Solve for x
x = 21,229,010,048,467,112/155,418,711.98 - Step 6: Final answer
x = 136,592,368.95
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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.