Finding the Fourth Proportional to 99,357,177.42, 137,114,455.86 and 55,304,655.12
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Solution
The fourth proportional to 99,357,177.42, 137,114,455.86 and 55,304,655.12 is: 76,321,287.40
Step by Step Solution
- Step 1: Write the proportion equation
99,357,177.42 : 137,114,455.86 = 55,304,655.12 : x - Step 2: Convert to fraction form
99,357,177.42/137,114,455.86 = 55,304,655.12/x - Step 3: Cross multiply
99,357,177.42x = 137,114,455.86 × 55,304,655.12 - Step 4: Simplify right side
99,357,177.42x = 7,583,067,693,303,763 - Step 5: Solve for x
x = 7,583,067,693,303,763/99,357,177.42 - Step 6: Final answer
x = 76,321,287.40
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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.