Finding the Fourth Proportional to 87,485,316.16, 120,727,392.96 and 48,326,250.10
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Solution
The fourth proportional to 87,485,316.16, 120,727,392.96 and 48,326,250.10 is: 66,688,930.69
Step by Step Solution
- Step 1: Write the proportion equation
87,485,316.16 : 120,727,392.96 = 48,326,250.10 : x - Step 2: Convert to fraction form
87,485,316.16/120,727,392.96 = 48,326,250.10/x - Step 3: Cross multiply
87,485,316.16x = 120,727,392.96 × 48,326,250.10 - Step 4: Simplify right side
87,485,316.16x = 5,834,302,186,105,939 - Step 5: Solve for x
x = 5,834,302,186,105,939/87,485,316.16 - Step 6: Final answer
x = 66,688,930.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.