Finding the Fourth Proportional to 1,030,603,076.20, 1,545,375,068.70 and 303,497,309.80
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Solution
The fourth proportional to 1,030,603,076.20, 1,545,375,068.70 and 303,497,309.80 is: 455,090,021.38
Step by Step Solution
- Step 1: Write the proportion equation
1,030,603,076.20 : 1,545,375,068.70 = 303,497,309.80 : x - Step 2: Convert to fraction form
1,030,603,076.20/1,545,375,068.70 = 303,497,309.80/x - Step 3: Cross multiply
1,030,603,076.20x = 1,545,375,068.70 × 303,497,309.80 - Step 4: Simplify right side
1,030,603,076.20x = 469,017,175,982,440,192 - Step 5: Solve for x
x = 469,017,175,982,440,192/1,030,603,076.20 - Step 6: Final answer
x = 455,090,021.38
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1.5x scale
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.