Finding the Fourth Proportional to 93,841,641.99, 129,455,447.00 and 81,434,321.19
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Solution
The fourth proportional to 93,841,641.99, 129,455,447.00 and 81,434,321.19 is: 112,339,428.71
Step by Step Solution
- Step 1: Write the proportion equation
93,841,641.99 : 129,455,447.00 = 81,434,321.19 : x - Step 2: Convert to fraction form
93,841,641.99/129,455,447.00 = 81,434,321.19/x - Step 3: Cross multiply
93,841,641.99x = 129,455,447.00 × 81,434,321.19 - Step 4: Simplify right side
93,841,641.99x = 10,542,116,450,385,850 - Step 5: Solve for x
x = 10,542,116,450,385,850/93,841,641.99 - Step 6: Final answer
x = 112,339,428.71
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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.