Finding the Fourth Proportional to 90,185,722.60, 135,276,217.26 and 28,778,628.48
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Solution
The fourth proportional to 90,185,722.60, 135,276,217.26 and 28,778,628.48 is: 43,167,187.51
Step by Step Solution
- Step 1: Write the proportion equation
90,185,722.60 : 135,276,217.26 = 28,778,628.48 : x - Step 2: Convert to fraction form
90,185,722.60/135,276,217.26 = 28,778,628.48/x - Step 3: Cross multiply
90,185,722.60x = 135,276,217.26 × 28,778,628.48 - Step 4: Simplify right side
90,185,722.60x = 3,893,063,998,090,098 - Step 5: Solve for x
x = 3,893,063,998,090,098/90,185,722.60 - Step 6: Final answer
x = 43,167,187.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.