Finding the Fourth Proportional to 455,919,502.65, 629,169,451.74 and 247,075,645.31
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Solution
The fourth proportional to 455,919,502.65, 629,169,451.74 and 247,075,645.31 is: 340,964,682.12
Step by Step Solution
- Step 1: Write the proportion equation
455,919,502.65 : 629,169,451.74 = 247,075,645.31 : x - Step 2: Convert to fraction form
455,919,502.65/629,169,451.74 = 247,075,645.31/x - Step 3: Cross multiply
455,919,502.65x = 629,169,451.74 × 247,075,645.31 - Step 4: Simplify right side
455,919,502.65x = 155,452,448,294,853,568 - Step 5: Solve for x
x = 155,452,448,294,853,568/455,919,502.65 - Step 6: Final answer
x = 340,964,682.12
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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.