Finding the Fourth Proportional to 455,158,878.60, 628,121,167.44 and 246,315,031.44
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Solution
The fourth proportional to 455,158,878.60, 628,121,167.44 and 246,315,031.44 is: 339,915,779.70
Step by Step Solution
- Step 1: Write the proportion equation
455,158,878.60 : 628,121,167.44 = 246,315,031.44 : x - Step 2: Convert to fraction form
455,158,878.60/628,121,167.44 = 246,315,031.44/x - Step 3: Cross multiply
455,158,878.60x = 628,121,167.44 × 246,315,031.44 - Step 4: Simplify right side
455,158,878.60x = 154,715,685,106,113,120 - Step 5: Solve for x
x = 154,715,685,106,113,120/455,158,878.60 - Step 6: Final answer
x = 339,915,779.70
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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.