Finding the Fourth Proportional to 22,972,639.68, 31,701,834 and 12,518,747.28
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Solution
The fourth proportional to 22,972,639.68, 31,701,834 and 12,518,747.28 is: 17,275,648.50
Step by Step Solution
- Step 1: Write the proportion equation
22,972,639.68 : 31,701,834 = 12,518,747.28 : x - Step 2: Convert to fraction form
22,972,639.68/31,701,834 = 12,518,747.28/x - Step 3: Cross multiply
22,972,639.68x = 31,701,834 × 12,518,747.28 - Step 4: Simplify right side
22,972,639.68x = 396,867,248,158,511.50 - Step 5: Solve for x
x = 396,867,248,158,511.50/22,972,639.68 - Step 6: Final answer
x = 17,275,648.50
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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.