Finding the Fourth Proportional to 151,262,911.97, 208,743,289.69 and 87,695,641.05
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Solution
The fourth proportional to 151,262,911.97, 208,743,289.69 and 87,695,641.05 is: 121,020,257.81
Step by Step Solution
- Step 1: Write the proportion equation
151,262,911.97 : 208,743,289.69 = 87,695,641.05 : x - Step 2: Convert to fraction form
151,262,911.97/208,743,289.69 = 87,695,641.05/x - Step 3: Cross multiply
151,262,911.97x = 208,743,289.69 × 87,695,641.05 - Step 4: Simplify right side
151,262,911.97x = 18,305,876,604,138,412 - Step 5: Solve for x
x = 18,305,876,604,138,412/151,262,911.97 - Step 6: Final answer
x = 121,020,257.81
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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.