Finding the Fourth Proportional to 90,458,090.18, 135,702,268.50 and 71,026,532
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Solution
The fourth proportional to 90,458,090.18, 135,702,268.50 and 71,026,532 is: 106,551,680.42
Step by Step Solution
- Step 1: Write the proportion equation
90,458,090.18 : 135,702,268.50 = 71,026,532 : x - Step 2: Convert to fraction form
90,458,090.18/135,702,268.50 = 71,026,532/x - Step 3: Cross multiply
90,458,090.18x = 135,702,268.50 × 71,026,532 - Step 4: Simplify right side
90,458,090.18x = 9,638,461,516,087,842 - Step 5: Solve for x
x = 9,638,461,516,087,842/90,458,090.18 - Step 6: Final answer
x = 106,551,680.42
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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.