Finding the Fourth Proportional to 293,327,916.78, 439,718,344.50 and 99,103,503.12
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Solution
The fourth proportional to 293,327,916.78, 439,718,344.50 and 99,103,503.12 is: 148,562,839.86
Step by Step Solution
- Step 1: Write the proportion equation
293,327,916.78 : 439,718,344.50 = 99,103,503.12 : x - Step 2: Convert to fraction form
293,327,916.78/439,718,344.50 = 99,103,503.12/x - Step 3: Cross multiply
293,327,916.78x = 439,718,344.50 × 99,103,503.12 - Step 4: Simplify right side
293,327,916.78x = 43,577,628,326,076,984 - Step 5: Solve for x
x = 43,577,628,326,076,984/293,327,916.78 - Step 6: Final answer
x = 148,562,839.86
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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.