Finding the Fourth Proportional to 118,418,348.52, 163,423,560.42 and 72,000,916.20
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Solution
The fourth proportional to 118,418,348.52, 163,423,560.42 and 72,000,916.20 is: 99,365,058.08
Step by Step Solution
- Step 1: Write the proportion equation
118,418,348.52 : 163,423,560.42 = 72,000,916.20 : x - Step 2: Convert to fraction form
118,418,348.52/163,423,560.42 = 72,000,916.20/x - Step 3: Cross multiply
118,418,348.52x = 163,423,560.42 × 72,000,916.20 - Step 4: Simplify right side
118,418,348.52x = 11,766,646,078,906,056 - Step 5: Solve for x
x = 11,766,646,078,906,056/118,418,348.52 - Step 6: Final answer
x = 99,365,058.08
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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.