Finding the Fourth Proportional to 1,782,425,995.48, 2,459,624,439.90 and 989,409,513.88
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Solution
The fourth proportional to 1,782,425,995.48, 2,459,624,439.90 and 989,409,513.88 is: 1,365,316,612.07
Step by Step Solution
- Step 1: Write the proportion equation
1,782,425,995.48 : 2,459,624,439.90 = 989,409,513.88 : x - Step 2: Convert to fraction form
1,782,425,995.48/2,459,624,439.90 = 989,409,513.88/x - Step 3: Cross multiply
1,782,425,995.48x = 2,459,624,439.90 × 989,409,513.88 - Step 4: Simplify right side
1,782,425,995.48x = 2,433,575,821,408,826,368 - Step 5: Solve for x
x = 2,433,575,821,408,826,368/1,782,425,995.48 - Step 6: Final answer
x = 1,365,316,612.07
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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.