Finding the Fourth Proportional to 101,452,128.96, 139,917,583.40 and 70,586,035.68
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Solution
The fourth proportional to 101,452,128.96, 139,917,583.40 and 70,586,035.68 is: 97,348,647.44
Step by Step Solution
- Step 1: Write the proportion equation
101,452,128.96 : 139,917,583.40 = 70,586,035.68 : x - Step 2: Convert to fraction form
101,452,128.96/139,917,583.40 = 70,586,035.68/x - Step 3: Cross multiply
101,452,128.96x = 139,917,583.40 × 70,586,035.68 - Step 4: Simplify right side
101,452,128.96x = 9,876,227,533,778,848 - Step 5: Solve for x
x = 9,876,227,533,778,848/101,452,128.96 - Step 6: Final answer
x = 97,348,647.44
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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.