Finding the Fourth Proportional to 819,977,644.08, 1,130,190,072.12 and 621,673,470
Calculator
Solution
The fourth proportional to 819,977,644.08, 1,130,190,072.12 and 621,673,470 is: 856,863,829.11
Step by Step Solution
- Step 1: Write the proportion equation
819,977,644.08 : 1,130,190,072.12 = 621,673,470 : x - Step 2: Convert to fraction form
819,977,644.08/1,130,190,072.12 = 621,673,470/x - Step 3: Cross multiply
819,977,644.08x = 1,130,190,072.12 × 621,673,470 - Step 4: Simplify right side
819,977,644.08x = 702,609,183,894,390,528 - Step 5: Solve for x
x = 702,609,183,894,390,528/819,977,644.08 - Step 6: Final answer
x = 856,863,829.11
Related Problems
Find fourth proportional to 409,988,822.04, 565,095,036.06 and 310,836,735
Half scale
Find fourth proportional to 1,639,955,288.16, 2,260,380,144.24 and 1,243,346,940
Double scale
Find fourth proportional to 819,977,645.08, 1,130,190,073.50 and 621,673,471
Similar ratio
Find fourth proportional to 1,229,966,466.12, 1,695,285,108.18 and 932,510,205
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.