Finding the Fourth Proportional to 103,388,891.13, 142,670,259.23 and 56,976,552.09
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Solution
The fourth proportional to 103,388,891.13, 142,670,259.23 and 56,976,552.09 is: 78,624,109.10
Step by Step Solution
- Step 1: Write the proportion equation
103,388,891.13 : 142,670,259.23 = 56,976,552.09 : x - Step 2: Convert to fraction form
103,388,891.13/142,670,259.23 = 56,976,552.09/x - Step 3: Cross multiply
103,388,891.13x = 142,670,259.23 × 56,976,552.09 - Step 4: Simplify right side
103,388,891.13x = 8,128,859,456,427,016 - Step 5: Solve for x
x = 8,128,859,456,427,016/103,388,891.13 - Step 6: Final answer
x = 78,624,109.10
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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.