Finding the Fourth Proportional to 90,458,092.18, 135,702,271.50 and 71,026,534
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Solution
The fourth proportional to 90,458,092.18, 135,702,271.50 and 71,026,534 is: 106,551,683.42
Step by Step Solution
- Step 1: Write the proportion equation
90,458,092.18 : 135,702,271.50 = 71,026,534 : x - Step 2: Convert to fraction form
90,458,092.18/135,702,271.50 = 71,026,534/x - Step 3: Cross multiply
90,458,092.18x = 135,702,271.50 × 71,026,534 - Step 4: Simplify right side
90,458,092.18x = 9,638,462,000,571,980 - Step 5: Solve for x
x = 9,638,462,000,571,980/90,458,092.18 - Step 6: Final answer
x = 106,551,683.42
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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.