Finding the Fourth Proportional to 113,532,953.80, 170,299,430.70 and 77,701,145.80
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Solution
The fourth proportional to 113,532,953.80, 170,299,430.70 and 77,701,145.80 is: 116,551,718.70
Step by Step Solution
- Step 1: Write the proportion equation
113,532,953.80 : 170,299,430.70 = 77,701,145.80 : x - Step 2: Convert to fraction form
113,532,953.80/170,299,430.70 = 77,701,145.80/x - Step 3: Cross multiply
113,532,953.80x = 170,299,430.70 × 77,701,145.80 - Step 4: Simplify right side
113,532,953.80x = 13,232,460,894,477,694 - Step 5: Solve for x
x = 13,232,460,894,477,694/113,532,953.80 - Step 6: Final answer
x = 116,551,718.70
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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.