Finding the Fourth Proportional to 217,618,493.80, 326,427,740.70 and 74,011,325.80
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Solution
The fourth proportional to 217,618,493.80, 326,427,740.70 and 74,011,325.80 is: 111,016,988.70
Step by Step Solution
- Step 1: Write the proportion equation
217,618,493.80 : 326,427,740.70 = 74,011,325.80 : x - Step 2: Convert to fraction form
217,618,493.80/326,427,740.70 = 74,011,325.80/x - Step 3: Cross multiply
217,618,493.80x = 326,427,740.70 × 74,011,325.80 - Step 4: Simplify right side
217,618,493.80x = 24,159,349,867,105,620 - Step 5: Solve for x
x = 24,159,349,867,105,620/217,618,493.80 - Step 6: Final answer
x = 111,016,988.70
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1.5x scale
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.