Finding the Fourth Proportional to 220,145,681.40, 330,134,541.30 and 66,740,753.40
Calculator
Solution
The fourth proportional to 220,145,681.40, 330,134,541.30 and 66,740,753.40 is: 100,085,669.95
Step by Step Solution
- Step 1: Write the proportion equation
220,145,681.40 : 330,134,541.30 = 66,740,753.40 : x - Step 2: Convert to fraction form
220,145,681.40/330,134,541.30 = 66,740,753.40/x - Step 3: Cross multiply
220,145,681.40x = 330,134,541.30 × 66,740,753.40 - Step 4: Simplify right side
220,145,681.40x = 22,033,428,009,725,416 - Step 5: Solve for x
x = 22,033,428,009,725,416/220,145,681.40 - Step 6: Final answer
x = 100,085,669.95
Related Problems
Find fourth proportional to 110,072,840.70, 165,067,270.65 and 33,370,376.70
Half scale
Find fourth proportional to 440,291,362.80, 660,269,082.60 and 133,481,506.80
Double scale
Find fourth proportional to 220,145,682.40, 330,134,542.80 and 66,740,754.40
Similar ratio
Find fourth proportional to 330,218,522.10, 495,201,811.95 and 100,111,130.10
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.