Finding the Fourth Proportional to 18,909,927.60, 28,365,121.80 and 6,130,330.80
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Solution
The fourth proportional to 18,909,927.60, 28,365,121.80 and 6,130,330.80 is: 9,195,570.89
Step by Step Solution
- Step 1: Write the proportion equation
18,909,927.60 : 28,365,121.80 = 6,130,330.80 : x - Step 2: Convert to fraction form
18,909,927.60/28,365,121.80 = 6,130,330.80/x - Step 3: Cross multiply
18,909,927.60x = 28,365,121.80 × 6,130,330.80 - Step 4: Simplify right side
18,909,927.60x = 173,887,579,816,291.44 - Step 5: Solve for x
x = 173,887,579,816,291.44/18,909,927.60 - Step 6: Final answer
x = 9,195,570.89
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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.