Finding the Fourth Proportional to 38,763,138.79, 53,494,272.57 and 21,360,605.01
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Solution
The fourth proportional to 38,763,138.79, 53,494,272.57 and 21,360,605.01 is: 29,478,263.69
Step by Step Solution
- Step 1: Write the proportion equation
38,763,138.79 : 53,494,272.57 = 21,360,605.01 : x - Step 2: Convert to fraction form
38,763,138.79/53,494,272.57 = 21,360,605.01/x - Step 3: Cross multiply
38,763,138.79x = 53,494,272.57 × 21,360,605.01 - Step 4: Simplify right side
38,763,138.79x = 1,142,670,026,665,047.75 - Step 5: Solve for x
x = 1,142,670,026,665,047.75/38,763,138.79 - Step 6: Final answer
x = 29,478,263.69
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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.