Finding the Fourth Proportional to 85,464,949.23, 128,062,988.95 and 66,081,524.49
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Solution
The fourth proportional to 85,464,949.23, 128,062,988.95 and 66,081,524.49 is: 99,018,341.63
Step by Step Solution
- Step 1: Write the proportion equation
85,464,949.23 : 128,062,988.95 = 66,081,524.49 : x - Step 2: Convert to fraction form
85,464,949.23/128,062,988.95 = 66,081,524.49/x - Step 3: Cross multiply
85,464,949.23x = 128,062,988.95 × 66,081,524.49 - Step 4: Simplify right side
85,464,949.23x = 8,462,597,539,591,301 - Step 5: Solve for x
x = 8,462,597,539,591,301/85,464,949.23 - Step 6: Final answer
x = 99,018,341.63
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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.