Finding the Fourth Proportional to 13,207,973.10, 19,811,959.65 and 5,649,701.10
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Solution
The fourth proportional to 13,207,973.10, 19,811,959.65 and 5,649,701.10 is: 8,474,551.65
Step by Step Solution
- Step 1: Write the proportion equation
13,207,973.10 : 19,811,959.65 = 5,649,701.10 : x - Step 2: Convert to fraction form
13,207,973.10/19,811,959.65 = 5,649,701.10/x - Step 3: Cross multiply
13,207,973.10x = 19,811,959.65 × 5,649,701.10 - Step 4: Simplify right side
13,207,973.10x = 111,931,650,227,760.59 - Step 5: Solve for x
x = 111,931,650,227,760.59/13,207,973.10 - Step 6: Final answer
x = 8,474,551.65
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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.