Finding the Fourth Proportional to 472,392,326.10, 708,588,489.15 and 144,865,237.80
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Solution
The fourth proportional to 472,392,326.10, 708,588,489.15 and 144,865,237.80 is: 217,297,856.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,326.10 : 708,588,489.15 = 144,865,237.80 : x - Step 2: Convert to fraction form
472,392,326.10/708,588,489.15 = 144,865,237.80/x - Step 3: Cross multiply
472,392,326.10x = 708,588,489.15 × 144,865,237.80 - Step 4: Simplify right side
472,392,326.10x = 102,649,839,983,057,472 - Step 5: Solve for x
x = 102,649,839,983,057,472/472,392,326.10 - Step 6: Final answer
x = 217,297,856.70
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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.