Finding the Fourth Proportional to 8,487,076,229.31, 11,712,784,218.93 and 4,919,704,115.07
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Solution
The fourth proportional to 8,487,076,229.31, 11,712,784,218.93 and 4,919,704,115.07 is: 6,789,550,507.61
Step by Step Solution
- Step 1: Write the proportion equation
8,487,076,229.31 : 11,712,784,218.93 = 4,919,704,115.07 : x - Step 2: Convert to fraction form
8,487,076,229.31/11,712,784,218.93 = 4,919,704,115.07/x - Step 3: Cross multiply
8,487,076,229.31x = 11,712,784,218.93 × 4,919,704,115.07 - Step 4: Simplify right side
8,487,076,229.31x = 57,623,432,720,851,222,528 - Step 5: Solve for x
x = 57,623,432,720,851,222,528/8,487,076,229.31 - Step 6: Final answer
x = 6,789,550,507.61
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Double scale
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1.5x scale
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.