Finding the Fourth Proportional to 695,292,844.09, 1,042,939,640.69 and 258,536,777.55
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Solution
The fourth proportional to 695,292,844.09, 1,042,939,640.69 and 258,536,777.55 is: 387,805,305.60
Step by Step Solution
- Step 1: Write the proportion equation
695,292,844.09 : 1,042,939,640.69 = 258,536,777.55 : x - Step 2: Convert to fraction form
695,292,844.09/1,042,939,640.69 = 258,536,777.55/x - Step 3: Cross multiply
695,292,844.09x = 1,042,939,640.69 × 258,536,777.55 - Step 4: Simplify right side
695,292,844.09x = 269,638,253,883,147,488 - Step 5: Solve for x
x = 269,638,253,883,147,488/695,292,844.09 - Step 6: Final answer
x = 387,805,305.60
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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.