Finding the Fourth Proportional to 685,256,850,862.63, 945,677,132,962.68 and 376,619,149,703.62
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Solution
The fourth proportional to 685,256,850,862.63, 945,677,132,962.68 and 376,619,149,703.62 is: 519,746,890,909.90
Step by Step Solution
- Step 1: Write the proportion equation
685,256,850,862.63 : 945,677,132,962.68 = 376,619,149,703.62 : x - Step 2: Convert to fraction form
685,256,850,862.63/945,677,132,962.68 = 376,619,149,703.62/x - Step 3: Cross multiply
685,256,850,862.63x = 945,677,132,962.68 × 376,619,149,703.62 - Step 4: Simplify right side
685,256,850,862.63x = 356,160,117,710,561,742,946,304 - Step 5: Solve for x
x = 356,160,117,710,561,742,946,304/685,256,850,862.63 - Step 6: Final answer
x = 519,746,890,909.90
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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.