Finding the Fourth Proportional to 13,809,138.68, 20,712,959.16 and 4,224,518.03
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Solution
The fourth proportional to 13,809,138.68, 20,712,959.16 and 4,224,518.03 is: 6,336,547.95
Step by Step Solution
- Step 1: Write the proportion equation
13,809,138.68 : 20,712,959.16 = 4,224,518.03 : x - Step 2: Convert to fraction form
13,809,138.68/20,712,959.16 = 4,224,518.03/x - Step 3: Cross multiply
13,809,138.68x = 20,712,959.16 × 4,224,518.03 - Step 4: Simplify right side
13,809,138.68x = 87,502,269,322,508.88 - Step 5: Solve for x
x = 87,502,269,322,508.88/13,809,138.68 - Step 6: Final answer
x = 6,336,547.95
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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.