Finding the Fourth Proportional to 607,392,017.80, 911,088,026.70 and 279,866,897.80
Calculator
Solution
The fourth proportional to 607,392,017.80, 911,088,026.70 and 279,866,897.80 is: 419,800,346.70
Step by Step Solution
- Step 1: Write the proportion equation
607,392,017.80 : 911,088,026.70 = 279,866,897.80 : x - Step 2: Convert to fraction form
607,392,017.80/911,088,026.70 = 279,866,897.80/x - Step 3: Cross multiply
607,392,017.80x = 911,088,026.70 × 279,866,897.80 - Step 4: Simplify right side
607,392,017.80x = 254,983,379,655,252,608 - Step 5: Solve for x
x = 254,983,379,655,252,608/607,392,017.80 - Step 6: Final answer
x = 419,800,346.70
Related Problems
Find fourth proportional to 303,696,008.90, 455,544,013.35 and 139,933,448.90
Half scale
Find fourth proportional to 1,214,784,035.60, 1,822,176,053.40 and 559,733,795.60
Double scale
Find fourth proportional to 607,392,018.80, 911,088,028.20 and 279,866,898.80
Similar ratio
Find fourth proportional to 911,088,026.70, 1,366,632,040.05 and 419,800,346.70
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.