Finding the Fourth Proportional to 97,103,423.80, 145,655,135.70 and 51,753,791.80
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Solution
The fourth proportional to 97,103,423.80, 145,655,135.70 and 51,753,791.80 is: 77,630,687.70
Step by Step Solution
- Step 1: Write the proportion equation
97,103,423.80 : 145,655,135.70 = 51,753,791.80 : x - Step 2: Convert to fraction form
97,103,423.80/145,655,135.70 = 51,753,791.80/x - Step 3: Cross multiply
97,103,423.80x = 145,655,135.70 × 51,753,791.80 - Step 4: Simplify right side
97,103,423.80x = 7,538,205,567,618,546 - Step 5: Solve for x
x = 7,538,205,567,618,546/97,103,423.80 - Step 6: Final answer
x = 77,630,687.70
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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.