Finding the Fourth Proportional to 70,669,388.70, 97,523,169.75 and 39,729,695.58
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Solution
The fourth proportional to 70,669,388.70, 97,523,169.75 and 39,729,695.58 is: 54,826,650.09
Step by Step Solution
- Step 1: Write the proportion equation
70,669,388.70 : 97,523,169.75 = 39,729,695.58 : x - Step 2: Convert to fraction form
70,669,388.70/97,523,169.75 = 39,729,695.58/x - Step 3: Cross multiply
70,669,388.70x = 97,523,169.75 × 39,729,695.58 - Step 4: Simplify right side
70,669,388.70x = 3,874,565,846,164,164.50 - Step 5: Solve for x
x = 3,874,565,846,164,164.50/70,669,388.70 - Step 6: Final answer
x = 54,826,650.09
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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.