Finding the Fourth Proportional to 49,729,811.90, 74,602,689.39 and 20,980,182.26
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Solution
The fourth proportional to 49,729,811.90, 74,602,689.39 and 20,980,182.26 is: 31,473,636.45
Step by Step Solution
- Step 1: Write the proportion equation
49,729,811.90 : 74,602,689.39 = 20,980,182.26 : x - Step 2: Convert to fraction form
49,729,811.90/74,602,689.39 = 20,980,182.26/x - Step 3: Cross multiply
49,729,811.90x = 74,602,689.39 × 20,980,182.26 - Step 4: Simplify right side
49,729,811.90x = 1,565,178,020,488,368.25 - Step 5: Solve for x
x = 1,565,178,020,488,368.25/49,729,811.90 - Step 6: Final answer
x = 31,473,636.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.