Finding the Fourth Proportional to 84,769,237.80, 127,153,856.70 and 30,243,391.20
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Solution
The fourth proportional to 84,769,237.80, 127,153,856.70 and 30,243,391.20 is: 45,365,086.80
Step by Step Solution
- Step 1: Write the proportion equation
84,769,237.80 : 127,153,856.70 = 30,243,391.20 : x - Step 2: Convert to fraction form
84,769,237.80/127,153,856.70 = 30,243,391.20/x - Step 3: Cross multiply
84,769,237.80x = 127,153,856.70 × 30,243,391.20 - Step 4: Simplify right side
84,769,237.80x = 3,845,563,830,766,841 - Step 5: Solve for x
x = 3,845,563,830,766,841/84,769,237.80 - Step 6: Final answer
x = 45,365,086.80
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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.