Finding the Fourth Proportional to 299,440,235.80, 449,328,315.30 and 126,887,685.40
Calculator
Solution
The fourth proportional to 299,440,235.80, 449,328,315.30 and 126,887,685.40 is: 190,402,701.76
Step by Step Solution
- Step 1: Write the proportion equation
299,440,235.80 : 449,328,315.30 = 126,887,685.40 : x - Step 2: Convert to fraction form
299,440,235.80/449,328,315.30 = 126,887,685.40/x - Step 3: Cross multiply
299,440,235.80x = 449,328,315.30 × 126,887,685.40 - Step 4: Simplify right side
299,440,235.80x = 57,014,229,913,098,408 - Step 5: Solve for x
x = 57,014,229,913,098,408/299,440,235.80 - Step 6: Final answer
x = 190,402,701.76
Related Problems
Find fourth proportional to 149,720,117.90, 224,664,157.65 and 63,443,842.70
Half scale
Find fourth proportional to 598,880,471.60, 898,656,630.60 and 253,775,370.80
Double scale
Find fourth proportional to 299,440,236.80, 449,328,316.80 and 126,887,686.40
Similar ratio
Find fourth proportional to 449,160,353.70, 673,992,472.95 and 190,331,528.10
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.