Finding the Fourth Proportional to 76,771,618.72, 115,176,320.88 and 54,096,802.72
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Solution
The fourth proportional to 76,771,618.72, 115,176,320.88 and 54,096,802.72 is: 81,158,516.81
Step by Step Solution
- Step 1: Write the proportion equation
76,771,618.72 : 115,176,320.88 = 54,096,802.72 : x - Step 2: Convert to fraction form
76,771,618.72/115,176,320.88 = 54,096,802.72/x - Step 3: Cross multiply
76,771,618.72x = 115,176,320.88 × 54,096,802.72 - Step 4: Simplify right side
76,771,618.72x = 6,230,670,708,660,776 - Step 5: Solve for x
x = 6,230,670,708,660,776/76,771,618.72 - Step 6: Final answer
x = 81,158,516.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.