Finding the Fourth Proportional to 121,394,994.80, 182,092,492.20 and 84,406,701.20
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Solution
The fourth proportional to 121,394,994.80, 182,092,492.20 and 84,406,701.20 is: 126,610,051.80
Step by Step Solution
- Step 1: Write the proportion equation
121,394,994.80 : 182,092,492.20 = 84,406,701.20 : x - Step 2: Convert to fraction form
121,394,994.80/182,092,492.20 = 84,406,701.20/x - Step 3: Cross multiply
121,394,994.80x = 182,092,492.20 × 84,406,701.20 - Step 4: Simplify right side
121,394,994.80x = 15,369,826,579,888,730 - Step 5: Solve for x
x = 15,369,826,579,888,730/121,394,994.80 - Step 6: Final answer
x = 126,610,051.80
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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.