Finding the Fourth Proportional to 1,908,881,912.95, 2,634,215,679.37 and 1,105,143,276.99
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Solution
The fourth proportional to 1,908,881,912.95, 2,634,215,679.37 and 1,105,143,276.99 is: 1,525,073,776.67
Step by Step Solution
- Step 1: Write the proportion equation
1,908,881,912.95 : 2,634,215,679.37 = 1,105,143,276.99 : x - Step 2: Convert to fraction form
1,908,881,912.95/2,634,215,679.37 = 1,105,143,276.99/x - Step 3: Cross multiply
1,908,881,912.95x = 2,634,215,679.37 × 1,105,143,276.99 - Step 4: Simplify right side
1,908,881,912.95x = 2,911,185,748,198,114,304 - Step 5: Solve for x
x = 2,911,185,748,198,114,304/1,908,881,912.95 - Step 6: Final answer
x = 1,525,073,776.67
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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.