Finding the Fourth Proportional to 70,669,388.20, 97,523,169.06 and 39,729,695.08
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Solution
The fourth proportional to 70,669,388.20, 97,523,169.06 and 39,729,695.08 is: 54,826,649.40
Step by Step Solution
- Step 1: Write the proportion equation
70,669,388.20 : 97,523,169.06 = 39,729,695.08 : x - Step 2: Convert to fraction form
70,669,388.20/97,523,169.06 = 39,729,695.08/x - Step 3: Cross multiply
70,669,388.20x = 97,523,169.06 × 39,729,695.08 - Step 4: Simplify right side
70,669,388.20x = 3,874,565,769,989,090 - Step 5: Solve for x
x = 3,874,565,769,989,090/70,669,388.20 - Step 6: Final answer
x = 54,826,649.40
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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.