Finding the Fourth Proportional to 3,991,955.16, 5,507,159.94 and 2,443,285.79
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Solution
The fourth proportional to 3,991,955.16, 5,507,159.94 and 2,443,285.79 is: 3,370,670.53
Step by Step Solution
- Step 1: Write the proportion equation
3,991,955.16 : 5,507,159.94 = 2,443,285.79 : x - Step 2: Convert to fraction form
3,991,955.16/5,507,159.94 = 2,443,285.79/x - Step 3: Cross multiply
3,991,955.16x = 5,507,159.94 × 2,443,285.79 - Step 4: Simplify right side
3,991,955.16x = 13,455,565,597,123.46 - Step 5: Solve for x
x = 13,455,565,597,123.46/3,991,955.16 - Step 6: Final answer
x = 3,370,670.53
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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.