Finding the Fourth Proportional to 97,787,352.88, 134,811,704.74 and 78,008,250.28
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Solution
The fourth proportional to 97,787,352.88, 134,811,704.74 and 78,008,250.28 is: 107,543,817.21
Step by Step Solution
- Step 1: Write the proportion equation
97,787,352.88 : 134,811,704.74 = 78,008,250.28 : x - Step 2: Convert to fraction form
97,787,352.88/134,811,704.74 = 78,008,250.28/x - Step 3: Cross multiply
97,787,352.88x = 134,811,704.74 × 78,008,250.28 - Step 4: Simplify right side
97,787,352.88x = 10,516,425,204,031,384 - Step 5: Solve for x
x = 10,516,425,204,031,384/97,787,352.88 - Step 6: Final answer
x = 107,543,817.21
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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.