Finding the Fourth Proportional to 256,868,950.58, 354,479,154.14 and 139,394,280.65
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Solution
The fourth proportional to 256,868,950.58, 354,479,154.14 and 139,394,280.65 is: 192,364,108.56
Step by Step Solution
- Step 1: Write the proportion equation
256,868,950.58 : 354,479,154.14 = 139,394,280.65 : x - Step 2: Convert to fraction form
256,868,950.58/354,479,154.14 = 139,394,280.65/x - Step 3: Cross multiply
256,868,950.58x = 354,479,154.14 × 139,394,280.65 - Step 4: Simplify right side
256,868,950.58x = 49,412,366,695,341,864 - Step 5: Solve for x
x = 49,412,366,695,341,864/256,868,950.58 - Step 6: Final answer
x = 192,364,108.56
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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.