Finding the Fourth Proportional to 896,860,850.80, 1,345,291,276.20 and 858,118,801.90
Calculator
Solution
The fourth proportional to 896,860,850.80, 1,345,291,276.20 and 858,118,801.90 is: 1,287,178,202.85
Step by Step Solution
- Step 1: Write the proportion equation
896,860,850.80 : 1,345,291,276.20 = 858,118,801.90 : x - Step 2: Convert to fraction form
896,860,850.80/1,345,291,276.20 = 858,118,801.90/x - Step 3: Cross multiply
896,860,850.80x = 1,345,291,276.20 × 858,118,801.90 - Step 4: Simplify right side
896,860,850.80x = 1,154,419,738,139,266,048 - Step 5: Solve for x
x = 1,154,419,738,139,266,048/896,860,850.80 - Step 6: Final answer
x = 1,287,178,202.85
Related Problems
Find fourth proportional to 448,430,425.40, 672,645,638.10 and 429,059,400.95
Half scale
Find fourth proportional to 1,793,721,701.60, 2,690,582,552.40 and 1,716,237,603.80
Double scale
Find fourth proportional to 896,860,851.80, 1,345,291,277.70 and 858,118,802.90
Similar ratio
Find fourth proportional to 1,345,291,276.20, 2,017,936,914.30 and 1,287,178,202.85
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.