Finding the Fourth Proportional to 148,478,577.20, 222,717,865.80 and 129,346,701.20
Calculator
Solution
The fourth proportional to 148,478,577.20, 222,717,865.80 and 129,346,701.20 is: 194,020,051.80
Step by Step Solution
- Step 1: Write the proportion equation
148,478,577.20 : 222,717,865.80 = 129,346,701.20 : x - Step 2: Convert to fraction form
148,478,577.20/222,717,865.80 = 129,346,701.20/x - Step 3: Cross multiply
148,478,577.20x = 222,717,865.80 × 129,346,701.20 - Step 4: Simplify right side
148,478,577.20x = 28,807,821,239,534,300 - Step 5: Solve for x
x = 28,807,821,239,534,300/148,478,577.20 - Step 6: Final answer
x = 194,020,051.80
Related Problems
Find fourth proportional to 74,239,288.60, 111,358,932.90 and 64,673,350.60
Half scale
Find fourth proportional to 296,957,154.40, 445,435,731.60 and 258,693,402.40
Double scale
Find fourth proportional to 148,478,578.20, 222,717,867.30 and 129,346,702.20
Similar ratio
Find fourth proportional to 222,717,865.80, 334,076,798.70 and 194,020,051.80
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.