Finding the Fourth Proportional to 1,638,724,683.84, 2,261,646,644.28 and 1,074,683,911.92
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Solution
The fourth proportional to 1,638,724,683.84, 2,261,646,644.28 and 1,074,683,911.92 is: 1,483,199,275.04
Step by Step Solution
- Step 1: Write the proportion equation
1,638,724,683.84 : 2,261,646,644.28 = 1,074,683,911.92 : x - Step 2: Convert to fraction form
1,638,724,683.84/2,261,646,644.28 = 1,074,683,911.92/x - Step 3: Cross multiply
1,638,724,683.84x = 2,261,646,644.28 × 1,074,683,911.92 - Step 4: Simplify right side
1,638,724,683.84x = 2,430,555,263,055,571,456 - Step 5: Solve for x
x = 2,430,555,263,055,571,456/1,638,724,683.84 - Step 6: Final answer
x = 1,483,199,275.04
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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.