Finding the Fourth Proportional to 51,475,116.72, 77,212,609.86 and 13,136,631.68
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Solution
The fourth proportional to 51,475,116.72, 77,212,609.86 and 13,136,631.68 is: 19,704,930.88
Step by Step Solution
- Step 1: Write the proportion equation
51,475,116.72 : 77,212,609.86 = 13,136,631.68 : x - Step 2: Convert to fraction form
51,475,116.72/77,212,609.86 = 13,136,631.68/x - Step 3: Cross multiply
51,475,116.72x = 77,212,609.86 × 13,136,631.68 - Step 4: Simplify right side
51,475,116.72x = 1,014,313,616,782,356.38 - Step 5: Solve for x
x = 1,014,313,616,782,356.38/51,475,116.72 - Step 6: Final answer
x = 19,704,930.88
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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.