Finding the Fourth Proportional to 74,325,164.40, 111,487,746.60 and 48,497,131.80
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Solution
The fourth proportional to 74,325,164.40, 111,487,746.60 and 48,497,131.80 is: 72,745,697.70
Step by Step Solution
- Step 1: Write the proportion equation
74,325,164.40 : 111,487,746.60 = 48,497,131.80 : x - Step 2: Convert to fraction form
74,325,164.40/111,487,746.60 = 48,497,131.80/x - Step 3: Cross multiply
74,325,164.40x = 111,487,746.60 × 48,497,131.80 - Step 4: Simplify right side
74,325,164.40x = 5,406,835,940,945,201 - Step 5: Solve for x
x = 5,406,835,940,945,201/74,325,164.40 - Step 6: Final answer
x = 72,745,697.70
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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.