Finding the Fourth Proportional to 136,772,774.94, 188,746,470.09 and 74,048,860.44
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Solution
The fourth proportional to 136,772,774.94, 188,746,470.09 and 74,048,860.44 is: 102,187,449.43
Step by Step Solution
- Step 1: Write the proportion equation
136,772,774.94 : 188,746,470.09 = 74,048,860.44 : x - Step 2: Convert to fraction form
136,772,774.94/188,746,470.09 = 74,048,860.44/x - Step 3: Cross multiply
136,772,774.94x = 188,746,470.09 × 74,048,860.44 - Step 4: Simplify right side
136,772,774.94x = 13,976,461,022,237,044 - Step 5: Solve for x
x = 13,976,461,022,237,044/136,772,774.94 - Step 6: Final answer
x = 102,187,449.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.