Finding the Fourth Proportional to 343,761,643.59, 474,391,119.33 and 187,129,939.65
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Solution
The fourth proportional to 343,761,643.59, 474,391,119.33 and 187,129,939.65 is: 258,239,344.58
Step by Step Solution
- Step 1: Write the proportion equation
343,761,643.59 : 474,391,119.33 = 187,129,939.65 : x - Step 2: Convert to fraction form
343,761,643.59/474,391,119.33 = 187,129,939.65/x - Step 3: Cross multiply
343,761,643.59x = 474,391,119.33 × 187,129,939.65 - Step 4: Simplify right side
343,761,643.59x = 88,772,781,530,718,848 - Step 5: Solve for x
x = 88,772,781,530,718,848/343,761,643.59 - Step 6: Final answer
x = 258,239,344.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.