Finding the Fourth Proportional to 143,437,249.98, 197,952,743.43 and 81,563,341.50
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Solution
The fourth proportional to 143,437,249.98, 197,952,743.43 and 81,563,341.50 is: 112,562,721.44
Step by Step Solution
- Step 1: Write the proportion equation
143,437,249.98 : 197,952,743.43 = 81,563,341.50 : x - Step 2: Convert to fraction form
143,437,249.98/197,952,743.43 = 81,563,341.50/x - Step 3: Cross multiply
143,437,249.98x = 197,952,743.43 × 81,563,341.50 - Step 4: Simplify right side
143,437,249.98x = 16,145,687,213,242,972 - Step 5: Solve for x
x = 16,145,687,213,242,972/143,437,249.98 - Step 6: Final answer
x = 112,562,721.44
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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.