Finding the Fourth Proportional to 395,756,890.56, 546,209,979.62 and 219,601,636.97
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Solution
The fourth proportional to 395,756,890.56, 546,209,979.62 and 219,601,636.97 is: 303,086,588.04
Step by Step Solution
- Step 1: Write the proportion equation
395,756,890.56 : 546,209,979.62 = 219,601,636.97 : x - Step 2: Convert to fraction form
395,756,890.56/546,209,979.62 = 219,601,636.97/x - Step 3: Cross multiply
395,756,890.56x = 546,209,979.62 × 219,601,636.97 - Step 4: Simplify right side
395,756,890.56x = 119,948,605,654,071,904 - Step 5: Solve for x
x = 119,948,605,654,071,904/395,756,890.56 - Step 6: Final answer
x = 303,086,588.04
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.