Finding the Fourth Proportional to 924,330,972.30, 1,275,707,542.41 and 572,020,427.94
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Solution
The fourth proportional to 924,330,972.30, 1,275,707,542.41 and 572,020,427.94 is: 789,469,136.28
Step by Step Solution
- Step 1: Write the proportion equation
924,330,972.30 : 1,275,707,542.41 = 572,020,427.94 : x - Step 2: Convert to fraction form
924,330,972.30/1,275,707,542.41 = 572,020,427.94/x - Step 3: Cross multiply
924,330,972.30x = 1,275,707,542.41 × 572,020,427.94 - Step 4: Simplify right side
924,330,972.30x = 729,730,774,335,654,016 - Step 5: Solve for x
x = 729,730,774,335,654,016/924,330,972.30 - Step 6: Final answer
x = 789,469,136.28
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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.