Finding the Fourth Proportional to 559,960,463.80, 839,940,695.70 and 457,923,791.80
Calculator
Solution
The fourth proportional to 559,960,463.80, 839,940,695.70 and 457,923,791.80 is: 686,885,687.70
Step by Step Solution
- Step 1: Write the proportion equation
559,960,463.80 : 839,940,695.70 = 457,923,791.80 : x - Step 2: Convert to fraction form
559,960,463.80/839,940,695.70 = 457,923,791.80/x - Step 3: Cross multiply
559,960,463.80x = 839,940,695.70 × 457,923,791.80 - Step 4: Simplify right side
559,960,463.80x = 384,628,828,262,073,984 - Step 5: Solve for x
x = 384,628,828,262,073,984/559,960,463.80 - Step 6: Final answer
x = 686,885,687.70
Related Problems
Find fourth proportional to 279,980,231.90, 419,970,347.85 and 228,961,895.90
Half scale
Find fourth proportional to 1,119,920,927.60, 1,679,881,391.40 and 915,847,583.60
Double scale
Find fourth proportional to 559,960,464.80, 839,940,697.20 and 457,923,792.80
Similar ratio
Find fourth proportional to 839,940,695.70, 1,259,911,043.55 and 686,885,687.70
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.