Finding the Fourth Proportional to 1,753,124,148.75, 2,419,387,374.56 and 970,842,996.75
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Solution
The fourth proportional to 1,753,124,148.75, 2,419,387,374.56 and 970,842,996.75 is: 1,339,805,449.99
Step by Step Solution
- Step 1: Write the proportion equation
1,753,124,148.75 : 2,419,387,374.56 = 970,842,996.75 : x - Step 2: Convert to fraction form
1,753,124,148.75/2,419,387,374.56 = 970,842,996.75/x - Step 3: Cross multiply
1,753,124,148.75x = 2,419,387,374.56 × 970,842,996.75 - Step 4: Simplify right side
1,753,124,148.75x = 2,348,845,289,012,090,880 - Step 5: Solve for x
x = 2,348,845,289,012,090,880/1,753,124,148.75 - Step 6: Final answer
x = 1,339,805,449.99
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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.