Finding the Fourth Proportional to 144,324,909.68, 199,197,309.85 and 85,620,159.68
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Solution
The fourth proportional to 144,324,909.68, 199,197,309.85 and 85,620,159.68 is: 118,172,985.62
Step by Step Solution
- Step 1: Write the proportion equation
144,324,909.68 : 199,197,309.85 = 85,620,159.68 : x - Step 2: Convert to fraction form
144,324,909.68/199,197,309.85 = 85,620,159.68/x - Step 3: Cross multiply
144,324,909.68x = 199,197,309.85 × 85,620,159.68 - Step 4: Simplify right side
144,324,909.68x = 17,055,305,475,973,398 - Step 5: Solve for x
x = 17,055,305,475,973,398/144,324,909.68 - Step 6: Final answer
x = 118,172,985.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.