Finding the Fourth Proportional to 123,762,121.63, 170,621,068.14 and 98,729,194.90
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Solution
The fourth proportional to 123,762,121.63, 170,621,068.14 and 98,729,194.90 is: 136,110,147.99
Step by Step Solution
- Step 1: Write the proportion equation
123,762,121.63 : 170,621,068.14 = 98,729,194.90 : x - Step 2: Convert to fraction form
123,762,121.63/170,621,068.14 = 98,729,194.90/x - Step 3: Cross multiply
123,762,121.63x = 170,621,068.14 × 98,729,194.90 - Step 4: Simplify right side
123,762,121.63x = 16,845,280,689,587,134 - Step 5: Solve for x
x = 16,845,280,689,587,134/123,762,121.63 - Step 6: Final answer
x = 136,110,147.99
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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.