Finding the Fourth Proportional to 85,729,316.96, 128,601,651.92 and 24,319,056.80
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Solution
The fourth proportional to 85,729,316.96, 128,601,651.92 and 24,319,056.80 is: 36,480,762.81
Step by Step Solution
- Step 1: Write the proportion equation
85,729,316.96 : 128,601,651.92 = 24,319,056.80 : x - Step 2: Convert to fraction form
85,729,316.96/128,601,651.92 = 24,319,056.80/x - Step 3: Cross multiply
85,729,316.96x = 128,601,651.92 × 24,319,056.80 - Step 4: Simplify right side
85,729,316.96x = 3,127,470,877,616,309 - Step 5: Solve for x
x = 3,127,470,877,616,309/85,729,316.96 - Step 6: Final answer
x = 36,480,762.81
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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.