Finding the Fourth Proportional to 153,178,240.75, 211,357,061.84 and 91,304,336.59
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Solution
The fourth proportional to 153,178,240.75, 211,357,061.84 and 91,304,336.59 is: 125,982,751.99
Step by Step Solution
- Step 1: Write the proportion equation
153,178,240.75 : 211,357,061.84 = 91,304,336.59 : x - Step 2: Convert to fraction form
153,178,240.75/211,357,061.84 = 91,304,336.59/x - Step 3: Cross multiply
153,178,240.75x = 211,357,061.84 × 91,304,336.59 - Step 4: Simplify right side
153,178,240.75x = 19,297,816,314,912,804 - Step 5: Solve for x
x = 19,297,816,314,912,804/153,178,240.75 - Step 6: Final answer
x = 125,982,751.99
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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.