Finding the Fourth Proportional to 5,228,126,603.15, 7,214,839,144.99 and 2,970,190,028.68
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Solution
The fourth proportional to 5,228,126,603.15, 7,214,839,144.99 and 2,970,190,028.68 is: 4,098,876,120.19
Step by Step Solution
- Step 1: Write the proportion equation
5,228,126,603.15 : 7,214,839,144.99 = 2,970,190,028.68 : x - Step 2: Convert to fraction form
5,228,126,603.15/7,214,839,144.99 = 2,970,190,028.68/x - Step 3: Cross multiply
5,228,126,603.15x = 7,214,839,144.99 × 2,970,190,028.68 - Step 4: Simplify right side
5,228,126,603.15x = 21,429,443,286,953,971,712 - Step 5: Solve for x
x = 21,429,443,286,953,971,712/5,228,126,603.15 - Step 6: Final answer
x = 4,098,876,120.19
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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.