Finding the Fourth Proportional to 826,397,715.20, 1,239,596,572.80 and 826,397,715.20
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Solution
The fourth proportional to 826,397,715.20, 1,239,596,572.80 and 826,397,715.20 is: 1,239,596,572.80
Step by Step Solution
- Step 1: Write the proportion equation
826,397,715.20 : 1,239,596,572.80 = 826,397,715.20 : x - Step 2: Convert to fraction form
826,397,715.20/1,239,596,572.80 = 826,397,715.20/x - Step 3: Cross multiply
826,397,715.20x = 1,239,596,572.80 × 826,397,715.20 - Step 4: Simplify right side
826,397,715.20x = 1,024,399,775,531,670,528 - Step 5: Solve for x
x = 1,024,399,775,531,670,528/826,397,715.20 - Step 6: Final answer
x = 1,239,596,572.80
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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.