Finding the Fourth Proportional to 1,122,912,000.80, 1,684,368,001.20 and 945,544,551.20
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Solution
The fourth proportional to 1,122,912,000.80, 1,684,368,001.20 and 945,544,551.20 is: 1,418,316,826.80
Step by Step Solution
- Step 1: Write the proportion equation
1,122,912,000.80 : 1,684,368,001.20 = 945,544,551.20 : x - Step 2: Convert to fraction form
1,122,912,000.80/1,684,368,001.20 = 945,544,551.20/x - Step 3: Cross multiply
1,122,912,000.80x = 1,684,368,001.20 × 945,544,551.20 - Step 4: Simplify right side
1,122,912,000.80x = 1,592,644,985,750,295,296 - Step 5: Solve for x
x = 1,592,644,985,750,295,296/1,122,912,000.80 - Step 6: Final answer
x = 1,418,316,826.80
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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.