Finding the Fourth Proportional to 1,079,349,228.12, 1,489,502,433.15 and 584,311,936.62
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Solution
The fourth proportional to 1,079,349,228.12, 1,489,502,433.15 and 584,311,936.62 is: 806,350,742.32
Step by Step Solution
- Step 1: Write the proportion equation
1,079,349,228.12 : 1,489,502,433.15 = 584,311,936.62 : x - Step 2: Convert to fraction form
1,079,349,228.12/1,489,502,433.15 = 584,311,936.62/x - Step 3: Cross multiply
1,079,349,228.12x = 1,489,502,433.15 × 584,311,936.62 - Step 4: Simplify right side
1,079,349,228.12x = 870,334,051,314,078,592 - Step 5: Solve for x
x = 870,334,051,314,078,592/1,079,349,228.12 - Step 6: Final answer
x = 806,350,742.32
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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.