Finding the Fourth Proportional to 1,638,806,465.70, 2,458,209,698.55 and 1,466,619,581.70
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Solution
The fourth proportional to 1,638,806,465.70, 2,458,209,698.55 and 1,466,619,581.70 is: 2,199,929,372.55
Step by Step Solution
- Step 1: Write the proportion equation
1,638,806,465.70 : 2,458,209,698.55 = 1,466,619,581.70 : x - Step 2: Convert to fraction form
1,638,806,465.70/2,458,209,698.55 = 1,466,619,581.70/x - Step 3: Cross multiply
1,638,806,465.70x = 2,458,209,698.55 × 1,466,619,581.70 - Step 4: Simplify right side
1,638,806,465.70x = 3,605,258,479,818,284,544 - Step 5: Solve for x
x = 3,605,258,479,818,284,544/1,638,806,465.70 - Step 6: Final answer
x = 2,199,929,372.55
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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.