Finding the Fourth Proportional to 642,752,045,534.70, 886,997,967,619.68 and 353,720,304,923.19
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Solution
The fourth proportional to 642,752,045,534.70, 886,997,967,619.68 and 353,720,304,923.19 is: 488,134,100,470.54
Step by Step Solution
- Step 1: Write the proportion equation
642,752,045,534.70 : 886,997,967,619.68 = 353,720,304,923.19 : x - Step 2: Convert to fraction form
642,752,045,534.70/886,997,967,619.68 = 353,720,304,923.19/x - Step 3: Cross multiply
642,752,045,534.70x = 886,997,967,619.68 × 353,720,304,923.19 - Step 4: Simplify right side
642,752,045,534.70x = 313,749,191,572,683,065,655,296 - Step 5: Solve for x
x = 313,749,191,572,683,065,655,296/642,752,045,534.70 - Step 6: Final answer
x = 488,134,100,470.54
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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.