Finding the Fourth Proportional to 1,508,968,396.18, 2,082,376,482.76 and 839,899,037.84
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Solution
The fourth proportional to 1,508,968,396.18, 2,082,376,482.76 and 839,899,037.84 is: 1,159,060,725.67
Step by Step Solution
- Step 1: Write the proportion equation
1,508,968,396.18 : 2,082,376,482.76 = 839,899,037.84 : x - Step 2: Convert to fraction form
1,508,968,396.18/2,082,376,482.76 = 839,899,037.84/x - Step 3: Cross multiply
1,508,968,396.18x = 2,082,376,482.76 × 839,899,037.84 - Step 4: Simplify right side
1,508,968,396.18x = 1,748,986,004,290,767,360 - Step 5: Solve for x
x = 1,748,986,004,290,767,360/1,508,968,396.18 - Step 6: Final answer
x = 1,159,060,725.67
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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.