Finding the Fourth Proportional to 195,609,965.80, 293,414,948.70 and 138,214,337.80
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Solution
The fourth proportional to 195,609,965.80, 293,414,948.70 and 138,214,337.80 is: 207,321,506.70
Step by Step Solution
- Step 1: Write the proportion equation
195,609,965.80 : 293,414,948.70 = 138,214,337.80 : x - Step 2: Convert to fraction form
195,609,965.80/293,414,948.70 = 138,214,337.80/x - Step 3: Cross multiply
195,609,965.80x = 293,414,948.70 × 138,214,337.80 - Step 4: Simplify right side
195,609,965.80x = 40,554,152,835,191,472 - Step 5: Solve for x
x = 40,554,152,835,191,472/195,609,965.80 - Step 6: Final answer
x = 207,321,506.70
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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.