Finding the Fourth Proportional to 765,963,941.12, 1,149,107,324.16 and 248,354,019.84
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Solution
The fourth proportional to 765,963,941.12, 1,149,107,324.16 and 248,354,019.84 is: 372,583,365.69
Step by Step Solution
- Step 1: Write the proportion equation
765,963,941.12 : 1,149,107,324.16 = 248,354,019.84 : x - Step 2: Convert to fraction form
765,963,941.12/1,149,107,324.16 = 248,354,019.84/x - Step 3: Cross multiply
765,963,941.12x = 1,149,107,324.16 × 248,354,019.84 - Step 4: Simplify right side
765,963,941.12x = 285,385,423,182,721,984 - Step 5: Solve for x
x = 285,385,423,182,721,984/765,963,941.12 - Step 6: Final answer
x = 372,583,365.69
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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.