Finding the Fourth Proportional to 3,573,081,102.09, 4,930,987,963.26 and 1,987,287,730.14
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Solution
The fourth proportional to 3,573,081,102.09, 4,930,987,963.26 and 1,987,287,730.14 is: 2,742,532,732.08
Step by Step Solution
- Step 1: Write the proportion equation
3,573,081,102.09 : 4,930,987,963.26 = 1,987,287,730.14 : x - Step 2: Convert to fraction form
3,573,081,102.09/4,930,987,963.26 = 1,987,287,730.14/x - Step 3: Cross multiply
3,573,081,102.09x = 4,930,987,963.26 × 1,987,287,730.14 - Step 4: Simplify right side
3,573,081,102.09x = 9,799,291,876,854,628,352 - Step 5: Solve for x
x = 9,799,291,876,854,628,352/3,573,081,102.09 - Step 6: Final answer
x = 2,742,532,732.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.