Finding the Fourth Proportional to 77,016,341.74, 115,523,621.94 and 18,724,349.92
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Solution
The fourth proportional to 77,016,341.74, 115,523,621.94 and 18,724,349.92 is: 28,086,308.34
Step by Step Solution
- Step 1: Write the proportion equation
77,016,341.74 : 115,523,621.94 = 18,724,349.92 : x - Step 2: Convert to fraction form
77,016,341.74/115,523,621.94 = 18,724,349.92/x - Step 3: Cross multiply
77,016,341.74x = 115,523,621.94 × 18,724,349.92 - Step 4: Simplify right side
77,016,341.74x = 2,163,104,721,230,349.50 - Step 5: Solve for x
x = 2,163,104,721,230,349.50/77,016,341.74 - Step 6: Final answer
x = 28,086,308.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.