Finding the Fourth Proportional to 121,817,249.96, 167,921,830.29 and 74,687,069.30
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Solution
The fourth proportional to 121,817,249.96, 167,921,830.29 and 74,687,069.30 is: 102,954,133.18
Step by Step Solution
- Step 1: Write the proportion equation
121,817,249.96 : 167,921,830.29 = 74,687,069.30 : x - Step 2: Convert to fraction form
121,817,249.96/167,921,830.29 = 74,687,069.30/x - Step 3: Cross multiply
121,817,249.96x = 167,921,830.29 × 74,687,069.30 - Step 4: Simplify right side
121,817,249.96x = 12,541,589,375,012,460 - Step 5: Solve for x
x = 12,541,589,375,012,460/121,817,249.96 - Step 6: Final answer
x = 102,954,133.18
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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.