Finding the Fourth Proportional to 66,291,337.54, 91,486,643.61 and 40,186,955.62
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Solution
The fourth proportional to 66,291,337.54, 91,486,643.61 and 40,186,955.62 is: 55,460,786.02
Step by Step Solution
- Step 1: Write the proportion equation
66,291,337.54 : 91,486,643.61 = 40,186,955.62 : x - Step 2: Convert to fraction form
66,291,337.54/91,486,643.61 = 40,186,955.62/x - Step 3: Cross multiply
66,291,337.54x = 91,486,643.61 × 40,186,955.62 - Step 4: Simplify right side
66,291,337.54x = 3,676,569,686,577,826.50 - Step 5: Solve for x
x = 3,676,569,686,577,826.50/66,291,337.54 - Step 6: Final answer
x = 55,460,786.02
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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.