Finding the Fourth Proportional to 455,142,850, 628,125,575.88 and 256,937,925.84
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Solution
The fourth proportional to 455,142,850, 628,125,575.88 and 256,937,925.84 is: 354,590,394.28
Step by Step Solution
- Step 1: Write the proportion equation
455,142,850 : 628,125,575.88 = 256,937,925.84 : x - Step 2: Convert to fraction form
455,142,850/628,125,575.88 = 256,937,925.84/x - Step 3: Cross multiply
455,142,850x = 628,125,575.88 × 256,937,925.84 - Step 4: Simplify right side
455,142,850x = 161,389,282,633,662,720 - Step 5: Solve for x
x = 161,389,282,633,662,720/455,142,850 - Step 6: Final answer
x = 354,590,394.28
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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.