Finding the Fourth Proportional to 711,570,121.23, 1,065,965,130.11 and 490,202,358.49
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Solution
The fourth proportional to 711,570,121.23, 1,065,965,130.11 and 490,202,358.49 is: 734,345,927.77
Step by Step Solution
- Step 1: Write the proportion equation
711,570,121.23 : 1,065,965,130.11 = 490,202,358.49 : x - Step 2: Convert to fraction form
711,570,121.23/1,065,965,130.11 = 490,202,358.49/x - Step 3: Cross multiply
711,570,121.23x = 1,065,965,130.11 × 490,202,358.49 - Step 4: Simplify right side
711,570,121.23x = 522,538,620,850,579,648 - Step 5: Solve for x
x = 522,538,620,850,579,648/711,570,121.23 - Step 6: Final answer
x = 734,345,927.77
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Double scale
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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.