Finding the Fourth Proportional to 834,663,862.08, 1,257,995,232.48 and 719,469,585.72
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Solution
The fourth proportional to 834,663,862.08, 1,257,995,232.48 and 719,469,585.72 is: 1,084,375,818.66
Step by Step Solution
- Step 1: Write the proportion equation
834,663,862.08 : 1,257,995,232.48 = 719,469,585.72 : x - Step 2: Convert to fraction form
834,663,862.08/1,257,995,232.48 = 719,469,585.72/x - Step 3: Cross multiply
834,663,862.08x = 1,257,995,232.48 × 719,469,585.72 - Step 4: Simplify right side
834,663,862.08x = 905,089,308,750,120,704 - Step 5: Solve for x
x = 905,089,308,750,120,704/834,663,862.08 - Step 6: Final answer
x = 1,084,375,818.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.