Finding the Fourth Proportional to 368,412,309.99, 508,453,569.95 and 209,681,028.23
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Solution
The fourth proportional to 368,412,309.99, 508,453,569.95 and 209,681,028.23 is: 289,385,192.80
Step by Step Solution
- Step 1: Write the proportion equation
368,412,309.99 : 508,453,569.95 = 209,681,028.23 : x - Step 2: Convert to fraction form
368,412,309.99/508,453,569.95 = 209,681,028.23/x - Step 3: Cross multiply
368,412,309.99x = 508,453,569.95 × 209,681,028.23 - Step 4: Simplify right side
368,412,309.99x = 106,613,067,354,330,224 - Step 5: Solve for x
x = 106,613,067,354,330,224/368,412,309.99 - Step 6: Final answer
x = 289,385,192.80
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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.