Finding the Fourth Proportional to 368,412,303.58, 508,453,561.11 and 209,681,021.82
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Solution
The fourth proportional to 368,412,303.58, 508,453,561.11 and 209,681,021.82 is: 289,385,183.96
Step by Step Solution
- Step 1: Write the proportion equation
368,412,303.58 : 508,453,561.11 = 209,681,021.82 : x - Step 2: Convert to fraction form
368,412,303.58/508,453,561.11 = 209,681,021.82/x - Step 3: Cross multiply
368,412,303.58x = 508,453,561.11 × 209,681,021.82 - Step 4: Simplify right side
368,412,303.58x = 106,613,062,243,070,912 - Step 5: Solve for x
x = 106,613,062,243,070,912/368,412,303.58 - Step 6: Final answer
x = 289,385,183.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.