Finding the Fourth Proportional to 39,033,702.42, 53,866,830.30 and 21,630,338.28
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Solution
The fourth proportional to 39,033,702.42, 53,866,830.30 and 21,630,338.28 is: 29,850,044.69
Step by Step Solution
- Step 1: Write the proportion equation
39,033,702.42 : 53,866,830.30 = 21,630,338.28 : x - Step 2: Convert to fraction form
39,033,702.42/53,866,830.30 = 21,630,338.28/x - Step 3: Cross multiply
39,033,702.42x = 53,866,830.30 × 21,630,338.28 - Step 4: Simplify right side
39,033,702.42x = 1,165,157,761,460,354 - Step 5: Solve for x
x = 1,165,157,761,460,354/39,033,702.42 - Step 6: Final answer
x = 29,850,044.69
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1.5x scale
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.