Finding the Fourth Proportional to 613,430,287.39, 920,145,451.07 and 153,368,456.70
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Solution
The fourth proportional to 613,430,287.39, 920,145,451.07 and 153,368,456.70 is: 230,052,690.05
Step by Step Solution
- Step 1: Write the proportion equation
613,430,287.39 : 920,145,451.07 = 153,368,456.70 : x - Step 2: Convert to fraction form
613,430,287.39/920,145,451.07 = 153,368,456.70/x - Step 3: Cross multiply
613,430,287.39x = 920,145,451.07 × 153,368,456.70 - Step 4: Simplify right side
613,430,287.39x = 141,121,287,769,865,968 - Step 5: Solve for x
x = 141,121,287,769,865,968/613,430,287.39 - Step 6: Final answer
x = 230,052,690.05
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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.