Finding the Fourth Proportional to 1,079,349,229.12, 1,489,502,434.53 and 584,311,937.62
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Solution
The fourth proportional to 1,079,349,229.12, 1,489,502,434.53 and 584,311,937.62 is: 806,350,743.70
Step by Step Solution
- Step 1: Write the proportion equation
1,079,349,229.12 : 1,489,502,434.53 = 584,311,937.62 : x - Step 2: Convert to fraction form
1,079,349,229.12/1,489,502,434.53 = 584,311,937.62/x - Step 3: Cross multiply
1,079,349,229.12x = 1,489,502,434.53 × 584,311,937.62 - Step 4: Simplify right side
1,079,349,229.12x = 870,334,053,609,931,520 - Step 5: Solve for x
x = 870,334,053,609,931,520/1,079,349,229.12 - Step 6: Final answer
x = 806,350,743.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.