Finding the Fourth Proportional to 920,403,973.62, 1,375,562,716.34 and 671,932,475.24
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Solution
The fourth proportional to 920,403,973.62, 1,375,562,716.34 and 671,932,475.24 is: 1,004,216,938.78
Step by Step Solution
- Step 1: Write the proportion equation
920,403,973.62 : 1,375,562,716.34 = 671,932,475.24 : x - Step 2: Convert to fraction form
920,403,973.62/1,375,562,716.34 = 671,932,475.24/x - Step 3: Cross multiply
920,403,973.62x = 1,375,562,716.34 × 671,932,475.24 - Step 4: Simplify right side
920,403,973.62x = 924,285,260,827,956,736 - Step 5: Solve for x
x = 924,285,260,827,956,736/920,403,973.62 - Step 6: Final answer
x = 1,004,216,938.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.