Finding the Fourth Proportional to 851,488,135.60, 1,277,232,203.40 and 367,758,727.60
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Solution
The fourth proportional to 851,488,135.60, 1,277,232,203.40 and 367,758,727.60 is: 551,638,091.40
Step by Step Solution
- Step 1: Write the proportion equation
851,488,135.60 : 1,277,232,203.40 = 367,758,727.60 : x - Step 2: Convert to fraction form
851,488,135.60/1,277,232,203.40 = 367,758,727.60/x - Step 3: Cross multiply
851,488,135.60x = 1,277,232,203.40 × 367,758,727.60 - Step 4: Simplify right side
851,488,135.60x = 469,713,289,972,128,448 - Step 5: Solve for x
x = 469,713,289,972,128,448/851,488,135.60 - Step 6: Final answer
x = 551,638,091.40
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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.