Finding the Fourth Proportional to 143,085,302.60, 214,698,812.70 and 81,721,581.80
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Solution
The fourth proportional to 143,085,302.60, 214,698,812.70 and 81,721,581.80 is: 122,622,842.92
Step by Step Solution
- Step 1: Write the proportion equation
143,085,302.60 : 214,698,812.70 = 81,721,581.80 : x - Step 2: Convert to fraction form
143,085,302.60/214,698,812.70 = 81,721,581.80/x - Step 3: Cross multiply
143,085,302.60x = 214,698,812.70 × 81,721,581.80 - Step 4: Simplify right side
143,085,302.60x = 17,545,526,584,425,928 - Step 5: Solve for x
x = 17,545,526,584,425,928/143,085,302.60 - Step 6: Final answer
x = 122,622,842.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.