Finding the Fourth Proportional to 15,117,582.08, 20,862,385.60 and 8,242,114.24
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Solution
The fourth proportional to 15,117,582.08, 20,862,385.60 and 8,242,114.24 is: 11,374,184.35
Step by Step Solution
- Step 1: Write the proportion equation
15,117,582.08 : 20,862,385.60 = 8,242,114.24 : x - Step 2: Convert to fraction form
15,117,582.08/20,862,385.60 = 8,242,114.24/x - Step 3: Cross multiply
15,117,582.08x = 20,862,385.60 × 8,242,114.24 - Step 4: Simplify right side
15,117,582.08x = 171,950,165,434,130.97 - Step 5: Solve for x
x = 171,950,165,434,130.97/15,117,582.08 - Step 6: Final answer
x = 11,374,184.35
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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.