Finding the Fourth Proportional to 23,307,972.70, 32,165,137.12 and 12,995,337.82
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Solution
The fourth proportional to 23,307,972.70, 32,165,137.12 and 12,995,337.82 is: 17,933,641.35
Step by Step Solution
- Step 1: Write the proportion equation
23,307,972.70 : 32,165,137.12 = 12,995,337.82 : x - Step 2: Convert to fraction form
23,307,972.70/32,165,137.12 = 12,995,337.82/x - Step 3: Cross multiply
23,307,972.70x = 32,165,137.12 × 12,995,337.82 - Step 4: Simplify right side
23,307,972.70x = 417,996,822,901,021.88 - Step 5: Solve for x
x = 417,996,822,901,021.88/23,307,972.70 - Step 6: Final answer
x = 17,933,641.35
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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.