Finding the Fourth Proportional to 38,487,132.41, 53,112,251.48 and 21,084,104.21
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Solution
The fourth proportional to 38,487,132.41, 53,112,251.48 and 21,084,104.21 is: 29,096,068.60
Step by Step Solution
- Step 1: Write the proportion equation
38,487,132.41 : 53,112,251.48 = 21,084,104.21 : x - Step 2: Convert to fraction form
38,487,132.41/53,112,251.48 = 21,084,104.21/x - Step 3: Cross multiply
38,487,132.41x = 53,112,251.48 × 21,084,104.21 - Step 4: Simplify right side
38,487,132.41x = 1,119,824,244,661,064.88 - Step 5: Solve for x
x = 1,119,824,244,661,064.88/38,487,132.41 - Step 6: Final answer
x = 29,096,068.60
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Double scale
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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.