Finding the Fourth Proportional to 455,919,423.35, 629,169,342.29 and 247,075,565.99
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Solution
The fourth proportional to 455,919,423.35, 629,169,342.29 and 247,075,565.99 is: 340,964,572.65
Step by Step Solution
- Step 1: Write the proportion equation
455,919,423.35 : 629,169,342.29 = 247,075,565.99 : x - Step 2: Convert to fraction form
455,919,423.35/629,169,342.29 = 247,075,565.99/x - Step 3: Cross multiply
455,919,423.35x = 629,169,342.29 × 247,075,565.99 - Step 4: Simplify right side
455,919,423.35x = 155,452,371,345,476,576 - Step 5: Solve for x
x = 155,452,371,345,476,576/455,919,423.35 - Step 6: Final answer
x = 340,964,572.65
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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.