Finding the Fourth Proportional to 1,145,212,948.32, 1,717,690,780.32 and 316,284,434.08
Calculator
Solution
The fourth proportional to 1,145,212,948.32, 1,717,690,780.32 and 316,284,434.08 is: 474,391,122.78
Step by Step Solution
- Step 1: Write the proportion equation
1,145,212,948.32 : 1,717,690,780.32 = 316,284,434.08 : x - Step 2: Convert to fraction form
1,145,212,948.32/1,717,690,780.32 = 316,284,434.08/x - Step 3: Cross multiply
1,145,212,948.32x = 1,717,690,780.32 × 316,284,434.08 - Step 4: Simplify right side
1,145,212,948.32x = 543,278,856,377,944,768 - Step 5: Solve for x
x = 543,278,856,377,944,768/1,145,212,948.32 - Step 6: Final answer
x = 474,391,122.78
Related Problems
Find fourth proportional to 572,606,474.16, 858,845,390.16 and 158,142,217.04
Half scale
Find fourth proportional to 2,290,425,896.64, 3,435,381,560.64 and 632,568,868.16
Double scale
Find fourth proportional to 1,145,212,949.32, 1,717,690,781.82 and 316,284,435.08
Similar ratio
Find fourth proportional to 1,717,819,422.48, 2,576,536,170.48 and 474,426,651.12
1.5x scale
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.