Finding the Fourth Proportional to 938,823,120.12, 1,295,612,341.97 and 515,454,626.36
Calculator
Solution
The fourth proportional to 938,823,120.12, 1,295,612,341.97 and 515,454,626.36 is: 711,347,389.42
Step by Step Solution
- Step 1: Write the proportion equation
938,823,120.12 : 1,295,612,341.97 = 515,454,626.36 : x - Step 2: Convert to fraction form
938,823,120.12/1,295,612,341.97 = 515,454,626.36/x - Step 3: Cross multiply
938,823,120.12x = 1,295,612,341.97 × 515,454,626.36 - Step 4: Simplify right side
938,823,120.12x = 667,829,375,628,495,488 - Step 5: Solve for x
x = 667,829,375,628,495,488/938,823,120.12 - Step 6: Final answer
x = 711,347,389.42
Related Problems
Find fourth proportional to 469,411,560.06, 647,806,170.98 and 257,727,313.18
Half scale
Find fourth proportional to 1,877,646,240.24, 2,591,224,683.93 and 1,030,909,252.71
Double scale
Find fourth proportional to 938,823,121.12, 1,295,612,343.35 and 515,454,627.36
Similar ratio
Find fourth proportional to 1,408,234,680.18, 1,943,418,512.95 and 773,181,939.53
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.