Finding the Fourth Proportional to 431,569,219.05, 646,609,811.17 and 201,065,542.65
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Solution
The fourth proportional to 431,569,219.05, 646,609,811.17 and 201,065,542.65 is: 301,251,680.67
Step by Step Solution
- Step 1: Write the proportion equation
431,569,219.05 : 646,609,811.17 = 201,065,542.65 : x - Step 2: Convert to fraction form
431,569,219.05/646,609,811.17 = 201,065,542.65/x - Step 3: Cross multiply
431,569,219.05x = 646,609,811.17 × 201,065,542.65 - Step 4: Simplify right side
431,569,219.05x = 130,010,952,565,710,080 - Step 5: Solve for x
x = 130,010,952,565,710,080/431,569,219.05 - Step 6: Final answer
x = 301,251,680.67
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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.