Finding the Fourth Proportional to 1,128,402,760.44, 1,691,831,426.42 and 574,633,248.76
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Solution
The fourth proportional to 1,128,402,760.44, 1,691,831,426.42 and 574,633,248.76 is: 861,556,372.42
Step by Step Solution
- Step 1: Write the proportion equation
1,128,402,760.44 : 1,691,831,426.42 = 574,633,248.76 : x - Step 2: Convert to fraction form
1,128,402,760.44/1,691,831,426.42 = 574,633,248.76/x - Step 3: Cross multiply
1,128,402,760.44x = 1,691,831,426.42 × 574,633,248.76 - Step 4: Simplify right side
1,128,402,760.44x = 972,182,588,917,989,504 - Step 5: Solve for x
x = 972,182,588,917,989,504/1,128,402,760.44 - Step 6: Final answer
x = 861,556,372.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.