Finding the Fourth Proportional to 743,134,395.76, 1,115,136,264.52 and 277,117,768.66
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Solution
The fourth proportional to 743,134,395.76, 1,115,136,264.52 and 277,117,768.66 is: 415,838,743.49
Step by Step Solution
- Step 1: Write the proportion equation
743,134,395.76 : 1,115,136,264.52 = 277,117,768.66 : x - Step 2: Convert to fraction form
743,134,395.76/1,115,136,264.52 = 277,117,768.66/x - Step 3: Cross multiply
743,134,395.76x = 1,115,136,264.52 × 277,117,768.66 - Step 4: Simplify right side
743,134,395.76x = 309,024,073,375,629,952 - Step 5: Solve for x
x = 309,024,073,375,629,952/743,134,395.76 - Step 6: Final answer
x = 415,838,743.49
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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.