Finding the Fourth Proportional to 153,761,634.12, 212,190,916.77 and 86,794,691.07
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Solution
The fourth proportional to 153,761,634.12, 212,190,916.77 and 86,794,691.07 is: 119,776,595.60
Step by Step Solution
- Step 1: Write the proportion equation
153,761,634.12 : 212,190,916.77 = 86,794,691.07 : x - Step 2: Convert to fraction form
153,761,634.12/212,190,916.77 = 86,794,691.07/x - Step 3: Cross multiply
153,761,634.12x = 212,190,916.77 × 86,794,691.07 - Step 4: Simplify right side
153,761,634.12x = 18,417,045,068,912,232 - Step 5: Solve for x
x = 18,417,045,068,912,232/153,761,634.12 - Step 6: Final answer
x = 119,776,595.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.