Finding the Fourth Proportional to 38,810,980.36, 53,558,214.60 and 21,406,951.80
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Solution
The fourth proportional to 38,810,980.36, 53,558,214.60 and 21,406,951.80 is: 29,541,075.95
Step by Step Solution
- Step 1: Write the proportion equation
38,810,980.36 : 53,558,214.60 = 21,406,951.80 : x - Step 2: Convert to fraction form
38,810,980.36/53,558,214.60 = 21,406,951.80/x - Step 3: Cross multiply
38,810,980.36x = 53,558,214.60 × 21,406,951.80 - Step 4: Simplify right side
38,810,980.36x = 1,146,518,118,436,256.25 - Step 5: Solve for x
x = 1,146,518,118,436,256.25/38,810,980.36 - Step 6: Final answer
x = 29,541,075.95
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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.