Finding the Fourth Proportional to 103,388,892.13, 142,670,260.60 and 56,976,553.09
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Solution
The fourth proportional to 103,388,892.13, 142,670,260.60 and 56,976,553.09 is: 78,624,110.48
Step by Step Solution
- Step 1: Write the proportion equation
103,388,892.13 : 142,670,260.60 = 56,976,553.09 : x - Step 2: Convert to fraction form
103,388,892.13/142,670,260.60 = 56,976,553.09/x - Step 3: Cross multiply
103,388,892.13x = 142,670,260.60 × 56,976,553.09 - Step 4: Simplify right side
103,388,892.13x = 8,128,859,677,440,035 - Step 5: Solve for x
x = 8,128,859,677,440,035/103,388,892.13 - Step 6: Final answer
x = 78,624,110.48
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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.