Finding the Fourth Proportional to 70,669,387.20, 97,523,167.68 and 39,729,694.08
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Solution
The fourth proportional to 70,669,387.20, 97,523,167.68 and 39,729,694.08 is: 54,826,648.02
Step by Step Solution
- Step 1: Write the proportion equation
70,669,387.20 : 97,523,167.68 = 39,729,694.08 : x - Step 2: Convert to fraction form
70,669,387.20/97,523,167.68 = 39,729,694.08/x - Step 3: Cross multiply
70,669,387.20x = 97,523,167.68 × 39,729,694.08 - Step 4: Simplify right side
70,669,387.20x = 3,874,565,617,638,943.50 - Step 5: Solve for x
x = 3,874,565,617,638,943.50/70,669,387.20 - Step 6: Final answer
x = 54,826,648.02
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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.