Finding the Fourth Proportional to 19,254,372.18, 28,890,900 and 8,470,271.74
Calculator
Solution
The fourth proportional to 19,254,372.18, 28,890,900 and 8,470,271.74 is: 12,709,517.17
Step by Step Solution
- Step 1: Write the proportion equation
19,254,372.18 : 28,890,900 = 8,470,271.74 : x - Step 2: Convert to fraction form
19,254,372.18/28,890,900 = 8,470,271.74/x - Step 3: Cross multiply
19,254,372.18x = 28,890,900 × 8,470,271.74 - Step 4: Simplify right side
19,254,372.18x = 244,713,773,813,166 - Step 5: Solve for x
x = 244,713,773,813,166/19,254,372.18 - Step 6: Final answer
x = 12,709,517.17
Related Problems
Find fourth proportional to 9,627,186.09, 14,445,450 and 4,235,135.87
Half scale
Find fourth proportional to 38,508,744.36, 57,781,800 and 16,940,543.48
Double scale
Find fourth proportional to 19,254,373.18, 28,890,901.50 and 8,470,272.74
Similar ratio
Find fourth proportional to 28,881,558.27, 43,336,350 and 12,705,407.61
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.