Finding the Fourth Proportional to 55,276,861.48, 76,282,334.16 and 30,497,047.08
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Solution
The fourth proportional to 55,276,861.48, 76,282,334.16 and 30,497,047.08 is: 42,086,071.35
Step by Step Solution
- Step 1: Write the proportion equation
55,276,861.48 : 76,282,334.16 = 30,497,047.08 : x - Step 2: Convert to fraction form
55,276,861.48/76,282,334.16 = 30,497,047.08/x - Step 3: Cross multiply
55,276,861.48x = 76,282,334.16 × 30,497,047.08 - Step 4: Simplify right side
55,276,861.48x = 2,326,385,936,249,812 - Step 5: Solve for x
x = 2,326,385,936,249,812/55,276,861.48 - Step 6: Final answer
x = 42,086,071.35
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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.