Finding the Fourth Proportional to 45,136,968.12, 67,665,298.86 and 19,564,027.20
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Solution
The fourth proportional to 45,136,968.12, 67,665,298.86 and 19,564,027.20 is: 29,328,636.87
Step by Step Solution
- Step 1: Write the proportion equation
45,136,968.12 : 67,665,298.86 = 19,564,027.20 : x - Step 2: Convert to fraction form
45,136,968.12/67,665,298.86 = 19,564,027.20/x - Step 3: Cross multiply
45,136,968.12x = 67,665,298.86 × 19,564,027.20 - Step 4: Simplify right side
45,136,968.12x = 1,323,805,747,393,169 - Step 5: Solve for x
x = 1,323,805,747,393,169/45,136,968.12 - Step 6: Final answer
x = 29,328,636.87
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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.