Finding the Fourth Proportional to 1,585,880,212.80, 2,378,820,319.20 and 966,007,430.40
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Solution
The fourth proportional to 1,585,880,212.80, 2,378,820,319.20 and 966,007,430.40 is: 1,449,011,145.60
Step by Step Solution
- Step 1: Write the proportion equation
1,585,880,212.80 : 2,378,820,319.20 = 966,007,430.40 : x - Step 2: Convert to fraction form
1,585,880,212.80/2,378,820,319.20 = 966,007,430.40/x - Step 3: Cross multiply
1,585,880,212.80x = 2,378,820,319.20 × 966,007,430.40 - Step 4: Simplify right side
1,585,880,212.80x = 2,297,958,103,933,699,584 - Step 5: Solve for x
x = 2,297,958,103,933,699,584/1,585,880,212.80 - Step 6: Final answer
x = 1,449,011,145.60
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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.