Finding the Fourth Proportional to 12,919,439.26, 19,360,877.97 and 7,164,703.95
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Solution
The fourth proportional to 12,919,439.26, 19,360,877.97 and 7,164,703.95 is: 10,736,917.92
Step by Step Solution
- Step 1: Write the proportion equation
12,919,439.26 : 19,360,877.97 = 7,164,703.95 : x - Step 2: Convert to fraction form
12,919,439.26/19,360,877.97 = 7,164,703.95/x - Step 3: Cross multiply
12,919,439.26x = 19,360,877.97 × 7,164,703.95 - Step 4: Simplify right side
12,919,439.26x = 138,714,958,867,126.98 - Step 5: Solve for x
x = 138,714,958,867,126.98/12,919,439.26 - Step 6: Final answer
x = 10,736,917.92
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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.