Finding the Fourth Proportional to 784,936,817.45, 1,177,405,226.18 and 239,677,476.65
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Solution
The fourth proportional to 784,936,817.45, 1,177,405,226.18 and 239,677,476.65 is: 359,516,214.98
Step by Step Solution
- Step 1: Write the proportion equation
784,936,817.45 : 1,177,405,226.18 = 239,677,476.65 : x - Step 2: Convert to fraction form
784,936,817.45/1,177,405,226.18 = 239,677,476.65/x - Step 3: Cross multiply
784,936,817.45x = 1,177,405,226.18 × 239,677,476.65 - Step 4: Simplify right side
784,936,817.45x = 282,197,513,604,146,528 - Step 5: Solve for x
x = 282,197,513,604,146,528/784,936,817.45 - Step 6: Final answer
x = 359,516,214.98
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Double scale
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Similar ratio
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1.5x scale
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.