Finding the Fourth Proportional to 2,129,934,236.40, 2,939,422,788.36 and 1,190,159,691.12
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Solution
The fourth proportional to 2,129,934,236.40, 2,939,422,788.36 and 1,190,159,691.12 is: 1,642,483,818.55
Step by Step Solution
- Step 1: Write the proportion equation
2,129,934,236.40 : 2,939,422,788.36 = 1,190,159,691.12 : x - Step 2: Convert to fraction form
2,129,934,236.40/2,939,422,788.36 = 1,190,159,691.12/x - Step 3: Cross multiply
2,129,934,236.40x = 2,939,422,788.36 × 1,190,159,691.12 - Step 4: Simplify right side
2,129,934,236.40x = 3,498,382,517,865,626,624 - Step 5: Solve for x
x = 3,498,382,517,865,626,624/2,129,934,236.40 - Step 6: Final answer
x = 1,642,483,818.55
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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.