Finding the Fourth Proportional to 1,280,132,246.80, 1,920,198,370.20 and 1,226,384,534.80
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Solution
The fourth proportional to 1,280,132,246.80, 1,920,198,370.20 and 1,226,384,534.80 is: 1,839,576,802.20
Step by Step Solution
- Step 1: Write the proportion equation
1,280,132,246.80 : 1,920,198,370.20 = 1,226,384,534.80 : x - Step 2: Convert to fraction form
1,280,132,246.80/1,920,198,370.20 = 1,226,384,534.80/x - Step 3: Cross multiply
1,280,132,246.80x = 1,920,198,370.20 × 1,226,384,534.80 - Step 4: Simplify right side
1,280,132,246.80x = 2,354,901,584,961,445,376 - Step 5: Solve for x
x = 2,354,901,584,961,445,376/1,280,132,246.80 - Step 6: Final answer
x = 1,839,576,802.20
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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.