Finding the Fourth Proportional to 3,172,485,424.23, 4,378,134,879.75 and 1,743,607,178.13
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Solution
The fourth proportional to 3,172,485,424.23, 4,378,134,879.75 and 1,743,607,178.13 is: 2,406,235,611.00
Step by Step Solution
- Step 1: Write the proportion equation
3,172,485,424.23 : 4,378,134,879.75 = 1,743,607,178.13 : x - Step 2: Convert to fraction form
3,172,485,424.23/4,378,134,879.75 = 1,743,607,178.13/x - Step 3: Cross multiply
3,172,485,424.23x = 4,378,134,879.75 × 1,743,607,178.13 - Step 4: Simplify right side
3,172,485,424.23x = 7,633,747,403,153,424,384 - Step 5: Solve for x
x = 7,633,747,403,153,424,384/3,172,485,424.23 - Step 6: Final answer
x = 2,406,235,611.00
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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.