Finding the Fourth Proportional to 38,546,140.68, 53,193,750.84 and 21,142,629
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Solution
The fourth proportional to 38,546,140.68, 53,193,750.84 and 21,142,629 is: 29,176,870.09
Step by Step Solution
- Step 1: Write the proportion equation
38,546,140.68 : 53,193,750.84 = 21,142,629 : x - Step 2: Convert to fraction form
38,546,140.68/53,193,750.84 = 21,142,629/x - Step 3: Cross multiply
38,546,140.68x = 53,193,750.84 × 21,142,629 - Step 4: Simplify right side
38,546,140.68x = 1,124,655,739,128,558.38 - Step 5: Solve for x
x = 1,124,655,739,128,558.38/38,546,140.68 - Step 6: Final answer
x = 29,176,870.09
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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.