Finding the Fourth Proportional to 26,138,219.20, 39,207,328.80 and 13,354,475.20
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Solution
The fourth proportional to 26,138,219.20, 39,207,328.80 and 13,354,475.20 is: 20,031,712.80
Step by Step Solution
- Step 1: Write the proportion equation
26,138,219.20 : 39,207,328.80 = 13,354,475.20 : x - Step 2: Convert to fraction form
26,138,219.20/39,207,328.80 = 13,354,475.20/x - Step 3: Cross multiply
26,138,219.20x = 39,207,328.80 × 13,354,475.20 - Step 4: Simplify right side
26,138,219.20x = 523,593,300,117,845.69 - Step 5: Solve for x
x = 523,593,300,117,845.69/26,138,219.20 - Step 6: Final answer
x = 20,031,712.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.