Finding the Fourth Proportional to 80,643,815.20, 120,888,308.40 and 26,763,392.80
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Solution
The fourth proportional to 80,643,815.20, 120,888,308.40 and 26,763,392.80 is: 40,119,397.56
Step by Step Solution
- Step 1: Write the proportion equation
80,643,815.20 : 120,888,308.40 = 26,763,392.80 : x - Step 2: Convert to fraction form
80,643,815.20/120,888,308.40 = 26,763,392.80/x - Step 3: Cross multiply
80,643,815.20x = 120,888,308.40 × 26,763,392.80 - Step 4: Simplify right side
80,643,815.20x = 3,235,381,282,636,740 - Step 5: Solve for x
x = 3,235,381,282,636,740/80,643,815.20 - Step 6: Final answer
x = 40,119,397.56
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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.