Finding the Fourth Proportional to 1,667,941,919.04, 2,301,753,531.66 and 915,267,687.70
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Solution
The fourth proportional to 1,667,941,919.04, 2,301,753,531.66 and 915,267,687.70 is: 1,263,065,942.85
Step by Step Solution
- Step 1: Write the proportion equation
1,667,941,919.04 : 2,301,753,531.66 = 915,267,687.70 : x - Step 2: Convert to fraction form
1,667,941,919.04/2,301,753,531.66 = 915,267,687.70/x - Step 3: Cross multiply
1,667,941,919.04x = 2,301,753,531.66 × 915,267,687.70 - Step 4: Simplify right side
1,667,941,919.04x = 2,106,720,632,580,425,728 - Step 5: Solve for x
x = 2,106,720,632,580,425,728/1,667,941,919.04 - Step 6: Final answer
x = 1,263,065,942.85
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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.