Finding the Fourth Proportional to 945,065,749.44, 1,304,190,974.76 and 521,679,646.92
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Solution
The fourth proportional to 945,065,749.44, 1,304,190,974.76 and 521,679,646.92 is: 719,918,045.52
Step by Step Solution
- Step 1: Write the proportion equation
945,065,749.44 : 1,304,190,974.76 = 521,679,646.92 : x - Step 2: Convert to fraction form
945,065,749.44/1,304,190,974.76 = 521,679,646.92/x - Step 3: Cross multiply
945,065,749.44x = 1,304,190,974.76 × 521,679,646.92 - Step 4: Simplify right side
945,065,749.44x = 680,369,887,229,047,424 - Step 5: Solve for x
x = 680,369,887,229,047,424/945,065,749.44 - Step 6: Final answer
x = 719,918,045.52
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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.