Finding the Fourth Proportional to 80,708,673.80, 121,381,875.30 and 72,418,194.20
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Solution
The fourth proportional to 80,708,673.80, 121,381,875.30 and 72,418,194.20 is: 108,913,401.79
Step by Step Solution
- Step 1: Write the proportion equation
80,708,673.80 : 121,381,875.30 = 72,418,194.20 : x - Step 2: Convert to fraction form
80,708,673.80/121,381,875.30 = 72,418,194.20/x - Step 3: Cross multiply
80,708,673.80x = 121,381,875.30 × 72,418,194.20 - Step 4: Simplify right side
80,708,673.80x = 8,790,256,217,835,583 - Step 5: Solve for x
x = 8,790,256,217,835,583/80,708,673.80 - Step 6: Final answer
x = 108,913,401.79
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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.