Finding the Fourth Proportional to 42,490,817.40, 63,652,245.30 and 23,287,207.80
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Solution
The fourth proportional to 42,490,817.40, 63,652,245.30 and 23,287,207.80 is: 34,884,785.79
Step by Step Solution
- Step 1: Write the proportion equation
42,490,817.40 : 63,652,245.30 = 23,287,207.80 : x - Step 2: Convert to fraction form
42,490,817.40/63,652,245.30 = 23,287,207.80/x - Step 3: Cross multiply
42,490,817.40x = 63,652,245.30 × 23,287,207.80 - Step 4: Simplify right side
42,490,817.40x = 1,482,283,063,237,673.25 - Step 5: Solve for x
x = 1,482,283,063,237,673.25/42,490,817.40 - Step 6: Final answer
x = 34,884,785.79
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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.