Finding the Fourth Proportional to 15,570,237.99, 21,486,512.13 and 8,600,765.54
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Solution
The fourth proportional to 15,570,237.99, 21,486,512.13 and 8,600,765.54 is: 11,868,826.49
Step by Step Solution
- Step 1: Write the proportion equation
15,570,237.99 : 21,486,512.13 = 8,600,765.54 : x - Step 2: Convert to fraction form
15,570,237.99/21,486,512.13 = 8,600,765.54/x - Step 3: Cross multiply
15,570,237.99x = 21,486,512.13 × 8,600,765.54 - Step 4: Simplify right side
15,570,237.99x = 184,800,453,102,495.97 - Step 5: Solve for x
x = 184,800,453,102,495.97/15,570,237.99 - Step 6: Final answer
x = 11,868,826.49
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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.