Finding the Fourth Proportional to 38,685,352.60, 53,386,229.64 and 22,165,146.12
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Solution
The fourth proportional to 38,685,352.60, 53,386,229.64 and 22,165,146.12 is: 30,588,155.50
Step by Step Solution
- Step 1: Write the proportion equation
38,685,352.60 : 53,386,229.64 = 22,165,146.12 : x - Step 2: Convert to fraction form
38,685,352.60/53,386,229.64 = 22,165,146.12/x - Step 3: Cross multiply
38,685,352.60x = 53,386,229.64 × 22,165,146.12 - Step 4: Simplify right side
38,685,352.60x = 1,183,313,580,766,475 - Step 5: Solve for x
x = 1,183,313,580,766,475/38,685,352.60 - Step 6: Final answer
x = 30,588,155.50
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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.