Finding the Fourth Proportional to 55,685,660.18, 76,845,055.12 and 30,904,407.79
Calculator
Solution
The fourth proportional to 55,685,660.18, 76,845,055.12 and 30,904,407.79 is: 42,647,441.23
Step by Step Solution
- Step 1: Write the proportion equation
55,685,660.18 : 76,845,055.12 = 30,904,407.79 : x - Step 2: Convert to fraction form
55,685,660.18/76,845,055.12 = 30,904,407.79/x - Step 3: Cross multiply
55,685,660.18x = 76,845,055.12 × 30,904,407.79 - Step 4: Simplify right side
55,685,660.18x = 2,374,850,919,804,134 - Step 5: Solve for x
x = 2,374,850,919,804,134/55,685,660.18 - Step 6: Final answer
x = 42,647,441.23
Related Problems
Find fourth proportional to 27,842,830.09, 38,422,527.56 and 15,452,203.89
Half scale
Find fourth proportional to 111,371,320.35, 153,690,110.24 and 61,808,815.58
Double scale
Find fourth proportional to 55,685,661.18, 76,845,056.50 and 30,904,408.79
Similar ratio
Find fourth proportional to 83,528,490.26, 115,267,582.68 and 46,356,611.68
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.