Finding the Fourth Proportional to 39,203,070.43, 54,100,281.72 and 21,799,041.99
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Solution
The fourth proportional to 39,203,070.43, 54,100,281.72 and 21,799,041.99 is: 30,082,702.71
Step by Step Solution
- Step 1: Write the proportion equation
39,203,070.43 : 54,100,281.72 = 21,799,041.99 : x - Step 2: Convert to fraction form
39,203,070.43/54,100,281.72 = 21,799,041.99/x - Step 3: Cross multiply
39,203,070.43x = 54,100,281.72 × 21,799,041.99 - Step 4: Simplify right side
39,203,070.43x = 1,179,334,312,885,109.25 - Step 5: Solve for x
x = 1,179,334,312,885,109.25/39,203,070.43 - Step 6: Final answer
x = 30,082,702.71
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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.