Finding the Fourth Proportional to 144,523,733.81, 199,442,953.62 and 78,444,246.07
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Solution
The fourth proportional to 144,523,733.81, 199,442,953.62 and 78,444,246.07 is: 108,253,168.66
Step by Step Solution
- Step 1: Write the proportion equation
144,523,733.81 : 199,442,953.62 = 78,444,246.07 : x - Step 2: Convert to fraction form
144,523,733.81/199,442,953.62 = 78,444,246.07/x - Step 3: Cross multiply
144,523,733.81x = 199,442,953.62 × 78,444,246.07 - Step 4: Simplify right side
144,523,733.81x = 15,645,152,131,127,688 - Step 5: Solve for x
x = 15,645,152,131,127,688/144,523,733.81 - Step 6: Final answer
x = 108,253,168.66
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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.