Finding the Fourth Proportional to 207,455,416.80, 310,970,548.80 and 121,149,398.40
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Solution
The fourth proportional to 207,455,416.80, 310,970,548.80 and 121,149,398.40 is: 181,599,957.66
Step by Step Solution
- Step 1: Write the proportion equation
207,455,416.80 : 310,970,548.80 = 121,149,398.40 : x - Step 2: Convert to fraction form
207,455,416.80/310,970,548.80 = 121,149,398.40/x - Step 3: Cross multiply
207,455,416.80x = 310,970,548.80 × 121,149,398.40 - Step 4: Simplify right side
207,455,416.80x = 37,673,894,907,237,848 - Step 5: Solve for x
x = 37,673,894,907,237,848/207,455,416.80 - Step 6: Final answer
x = 181,599,957.66
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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.