Finding the Fourth Proportional to 877,039,118.29, 1,315,120,939.62 and 286,752,467.98
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Solution
The fourth proportional to 877,039,118.29, 1,315,120,939.62 and 286,752,467.98 is: 429,985,581.33
Step by Step Solution
- Step 1: Write the proportion equation
877,039,118.29 : 1,315,120,939.62 = 286,752,467.98 : x - Step 2: Convert to fraction form
877,039,118.29/1,315,120,939.62 = 286,752,467.98/x - Step 3: Cross multiply
877,039,118.29x = 1,315,120,939.62 × 286,752,467.98 - Step 4: Simplify right side
877,039,118.29x = 377,114,175,128,211,584 - Step 5: Solve for x
x = 377,114,175,128,211,584/877,039,118.29 - Step 6: Final answer
x = 429,985,581.33
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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.