Finding the Fourth Proportional to 193,817,549.70, 290,691,805.48 and 77,223,134.07
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Solution
The fourth proportional to 193,817,549.70, 290,691,805.48 and 77,223,134.07 is: 115,820,947.60
Step by Step Solution
- Step 1: Write the proportion equation
193,817,549.70 : 290,691,805.48 = 77,223,134.07 : x - Step 2: Convert to fraction form
193,817,549.70/290,691,805.48 = 77,223,134.07/x - Step 3: Cross multiply
193,817,549.70x = 290,691,805.48 × 77,223,134.07 - Step 4: Simplify right side
193,817,549.70x = 22,448,132,267,632,400 - Step 5: Solve for x
x = 22,448,132,267,632,400/193,817,549.70 - Step 6: Final answer
x = 115,820,947.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.