Finding the Fourth Proportional to 217,618,658.80, 326,427,988.20 and 74,011,490.80
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Solution
The fourth proportional to 217,618,658.80, 326,427,988.20 and 74,011,490.80 is: 111,017,236.20
Step by Step Solution
- Step 1: Write the proportion equation
217,618,658.80 : 326,427,988.20 = 74,011,490.80 : x - Step 2: Convert to fraction form
217,618,658.80/326,427,988.20 = 74,011,490.80/x - Step 3: Cross multiply
217,618,658.80x = 326,427,988.20 × 74,011,490.80 - Step 4: Simplify right side
217,618,658.80x = 24,159,422,045,526,808 - Step 5: Solve for x
x = 24,159,422,045,526,808/217,618,658.80 - Step 6: Final answer
x = 111,017,236.20
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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.