Finding the Fourth Proportional to 186,939,993.08, 280,159,338.95 and 145,490,918.91
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Solution
The fourth proportional to 186,939,993.08, 280,159,338.95 and 145,490,918.91 is: 218,041,302.95
Step by Step Solution
- Step 1: Write the proportion equation
186,939,993.08 : 280,159,338.95 = 145,490,918.91 : x - Step 2: Convert to fraction form
186,939,993.08/280,159,338.95 = 145,490,918.91/x - Step 3: Cross multiply
186,939,993.08x = 280,159,338.95 × 145,490,918.91 - Step 4: Simplify right side
186,939,993.08x = 40,760,639,664,326,200 - Step 5: Solve for x
x = 40,760,639,664,326,200/186,939,993.08 - Step 6: Final answer
x = 218,041,302.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.