Finding the Fourth Proportional to 66,238,124.28, 91,409,645.52 and 36,869,776.08
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Solution
The fourth proportional to 66,238,124.28, 91,409,645.52 and 36,869,776.08 is: 50,880,866.55
Step by Step Solution
- Step 1: Write the proportion equation
66,238,124.28 : 91,409,645.52 = 36,869,776.08 : x - Step 2: Convert to fraction form
66,238,124.28/91,409,645.52 = 36,869,776.08/x - Step 3: Cross multiply
66,238,124.28x = 91,409,645.52 × 36,869,776.08 - Step 4: Simplify right side
66,238,124.28x = 3,370,253,161,874,575 - Step 5: Solve for x
x = 3,370,253,161,874,575/66,238,124.28 - Step 6: Final answer
x = 50,880,866.55
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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.