Finding the Fourth Proportional to 805,482,589.42, 1,111,577,438.82 and 475,457,728.42
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Solution
The fourth proportional to 805,482,589.42, 1,111,577,438.82 and 475,457,728.42 is: 656,138,432.99
Step by Step Solution
- Step 1: Write the proportion equation
805,482,589.42 : 1,111,577,438.82 = 475,457,728.42 : x - Step 2: Convert to fraction form
805,482,589.42/1,111,577,438.82 = 475,457,728.42/x - Step 3: Cross multiply
805,482,589.42x = 1,111,577,438.82 × 475,457,728.42 - Step 4: Simplify right side
805,482,589.42x = 528,508,084,024,278,720 - Step 5: Solve for x
x = 528,508,084,024,278,720/805,482,589.42 - Step 6: Final answer
x = 656,138,432.99
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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.