Finding the Fourth Proportional to 1,899,255,127.68, 2,621,117,478.78 and 1,195,010,772.12
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Solution
The fourth proportional to 1,899,255,127.68, 2,621,117,478.78 and 1,195,010,772.12 is: 1,649,206,352.79
Step by Step Solution
- Step 1: Write the proportion equation
1,899,255,127.68 : 2,621,117,478.78 = 1,195,010,772.12 : x - Step 2: Convert to fraction form
1,899,255,127.68/2,621,117,478.78 = 1,195,010,772.12/x - Step 3: Cross multiply
1,899,255,127.68x = 2,621,117,478.78 × 1,195,010,772.12 - Step 4: Simplify right side
1,899,255,127.68x = 3,132,263,622,134,115,328 - Step 5: Solve for x
x = 3,132,263,622,134,115,328/1,899,255,127.68 - Step 6: Final answer
x = 1,649,206,352.79
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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.