Finding the Fourth Proportional to 653,205,745.80, 979,808,618.70 and 265,214,449.80
Calculator
Solution
The fourth proportional to 653,205,745.80, 979,808,618.70 and 265,214,449.80 is: 397,821,674.70
Step by Step Solution
- Step 1: Write the proportion equation
653,205,745.80 : 979,808,618.70 = 265,214,449.80 : x - Step 2: Convert to fraction form
653,205,745.80/979,808,618.70 = 265,214,449.80/x - Step 3: Cross multiply
653,205,745.80x = 979,808,618.70 × 265,214,449.80 - Step 4: Simplify right side
653,205,745.80x = 259,859,403,717,818,528 - Step 5: Solve for x
x = 259,859,403,717,818,528/653,205,745.80 - Step 6: Final answer
x = 397,821,674.70
Related Problems
Find fourth proportional to 326,602,872.90, 489,904,309.35 and 132,607,224.90
Half scale
Find fourth proportional to 1,306,411,491.60, 1,959,617,237.40 and 530,428,899.60
Double scale
Find fourth proportional to 653,205,746.80, 979,808,620.20 and 265,214,450.80
Similar ratio
Find fourth proportional to 979,808,618.70, 1,469,712,928.05 and 397,821,674.70
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.