Finding the Fourth Proportional to 477,840,271.88, 659,452,717.17 and 289,676,496.85
Calculator
Solution
The fourth proportional to 477,840,271.88, 659,452,717.17 and 289,676,496.85 is: 399,773,656.99
Step by Step Solution
- Step 1: Write the proportion equation
477,840,271.88 : 659,452,717.17 = 289,676,496.85 : x - Step 2: Convert to fraction form
477,840,271.88/659,452,717.17 = 289,676,496.85/x - Step 3: Cross multiply
477,840,271.88x = 659,452,717.17 × 289,676,496.85 - Step 4: Simplify right side
477,840,271.88x = 191,027,952,946,370,816 - Step 5: Solve for x
x = 191,027,952,946,370,816/477,840,271.88 - Step 6: Final answer
x = 399,773,656.99
Related Problems
Find fourth proportional to 238,920,135.94, 329,726,358.59 and 144,838,248.42
Half scale
Find fourth proportional to 955,680,543.77, 1,318,905,434.34 and 579,352,993.70
Double scale
Find fourth proportional to 477,840,272.88, 659,452,718.55 and 289,676,497.85
Similar ratio
Find fourth proportional to 716,760,407.82, 989,179,075.76 and 434,514,745.27
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.