Finding the Fourth Proportional to 20,786,822.24, 28,671,581.20 and 13,553,276
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Solution
The fourth proportional to 20,786,822.24, 28,671,581.20 and 13,553,276 is: 18,694,240.46
Step by Step Solution
- Step 1: Write the proportion equation
20,786,822.24 : 28,671,581.20 = 13,553,276 : x - Step 2: Convert to fraction form
20,786,822.24/28,671,581.20 = 13,553,276/x - Step 3: Cross multiply
20,786,822.24x = 28,671,581.20 × 13,553,276 - Step 4: Simplify right side
20,786,822.24x = 388,593,853,360,011.19 - Step 5: Solve for x
x = 388,593,853,360,011.19/20,786,822.24 - Step 6: Final answer
x = 18,694,240.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.