Finding the Fourth Proportional to 51,642,438.35, 71,261,146.85 and 29,308,312.15
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Solution
The fourth proportional to 51,642,438.35, 71,261,146.85 and 29,308,312.15 is: 40,442,395.88
Step by Step Solution
- Step 1: Write the proportion equation
51,642,438.35 : 71,261,146.85 = 29,308,312.15 : x - Step 2: Convert to fraction form
51,642,438.35/71,261,146.85 = 29,308,312.15/x - Step 3: Cross multiply
51,642,438.35x = 71,261,146.85 × 29,308,312.15 - Step 4: Simplify right side
51,642,438.35x = 2,088,543,936,046,789 - Step 5: Solve for x
x = 2,088,543,936,046,789/51,642,438.35 - Step 6: Final answer
x = 40,442,395.88
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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.