Finding the Fourth Proportional to 5,317,417,186.56, 7,968,996,189 and 4,138,421,365.80
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Solution
The fourth proportional to 5,317,417,186.56, 7,968,996,189 and 4,138,421,365.80 is: 6,202,083,254.99
Step by Step Solution
- Step 1: Write the proportion equation
5,317,417,186.56 : 7,968,996,189 = 4,138,421,365.80 : x - Step 2: Convert to fraction form
5,317,417,186.56/7,968,996,189 = 4,138,421,365.80/x - Step 3: Cross multiply
5,317,417,186.56x = 7,968,996,189 × 4,138,421,365.80 - Step 4: Simplify right side
5,317,417,186.56x = 32,979,064,092,536,377,344 - Step 5: Solve for x
x = 32,979,064,092,536,377,344/5,317,417,186.56 - Step 6: Final answer
x = 6,202,083,254.99
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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.