Finding the Fourth Proportional to 386,653,472.64, 533,593,510.56 and 210,454,209.09
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Solution
The fourth proportional to 386,653,472.64, 533,593,510.56 and 210,454,209.09 is: 290,433,186.79
Step by Step Solution
- Step 1: Write the proportion equation
386,653,472.64 : 533,593,510.56 = 210,454,209.09 : x - Step 2: Convert to fraction form
386,653,472.64/533,593,510.56 = 210,454,209.09/x - Step 3: Cross multiply
386,653,472.64x = 533,593,510.56 × 210,454,209.09 - Step 4: Simplify right side
386,653,472.64x = 112,297,000,240,461,360 - Step 5: Solve for x
x = 112,297,000,240,461,360/386,653,472.64 - Step 6: Final answer
x = 290,433,186.79
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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.